What is Decree No. 307 / 2002 Coll.?

Decree of the State Office for Nuclear Safety No. 307 / 2002 Coll., on Radiation Protection — State Office of Nuclear Safety Decree on Radiological Protection.

When it became Decree No. 307 / 2002 Coll. effectiveness?

Decree No. 307 / 2002 Coll. became effective 12.07.2002.

Is Decree No. 307 / 2002 Coll. still valid?

Yes, Decree No. 307 / 2002 Coll. is still valid and effective.

How many times was it Decree No. 307 / 2002 Coll. amended?

Decree No. 307 / 2002 Coll. has 5 time versions of the text.

Decree No. 307 / 2002 Coll. - State Office of Nuclear Safety Decree on...

307

DECLARATION

State Office for Nuclear Security

of 13 June 2002

on radiation protection

According to Article 47 (7) for the implementation of § 2 (h) (4), § 2 (gg), § 4 (4), (5), 6, 7, 11 and 12, § 6 (2), (3), (4), (5) and (6), § 8 (1) (a), § 8 (1) (e), § 9 (1) (i), (j), (r), § 13 (3) (d), § 17 (1) (d), § 18 (1) (a), (c), § 22 (e), § 24 (4) and paragraphs I.6, I.7, I.8, Annex to Law No 18 / 1997 Coll., on the peaceful use of nuclear energy and ionising radiation (atomic law) and amending and supplementing certain laws, as amended by Act No 83 / 1998 Coll. 13 / 2002 Coll.

ČÁST PRVNÍ

INTRODUCTORY AND GENERAL PROVISIONS

HLAVA I

§ 1

Subject matter

(1) This decree, in accordance with the law of the European Communities (1), regulates:

(a) details of the manner and extent of radiation protection at work at the sites where radiation activities are carried out, including details of the delimitation, labelling and notification or approval of monitored or controlled zones at those sites;

(b) details of the performance of work activities linked to the increased presence of natural radionuclides or to the increased influence of cosmic radiation and which lead or could lead to a significant increase in the exposure of natural persons (hereinafter referred to as "enhanced irradiation work from natural sources"), by establishing the workplaces and persons concerned, the range of measurements and indicative values for interventions to reduce increased irradiation from natural resources;

(c) details of the rules for the preparation and implementation of action to prevent or reduce exposure and sets indicative values for such action;

(d) exemption levels, release levels, exposure limits, optimisation limits, limits on the content of natural radionuclides in building materials and water and maximum permitted levels of radioactive contamination of foodstuffs;

(e) details of the classification of sources of ionising radiation and the categorisation of radiation workers and workplaces where radiation activities are carried out;

(f) technical and organisational requirements, procedures and indicative values to demonstrate the optimisation of radiation protection;

(g) the extent and manner of management of sources of ionising radiation, the management of radioactive waste and the placing of radionuclides in the environment for which authorisation is required, and it shall provide for details of radiation protection in these radiation activities;

(h) medical exposure conditions, diagnostic reference levels and rules on the exposure of natural persons voluntarily assisting persons undergoing medical exposure;

(i) establish technical and organisational conditions for the safe operation of sources of ionising radiation and workplaces with them, including high-activity and abandoned radiators;

(j) define the quantities, parameters and facts relevant to radiation protection, determine the scope of their monitoring, measurement, evaluation, verification, recording, registration and transmission to the Office of the State for Nuclear Security (hereinafter the Office).

(2) This decree does not apply to radiation from the natural background, it is to radionuclides naturally contained in the human body, to cosmic radiation which is common on the earth's surface, or to radiation caused by radionuclides present in human activity of intact earth's crust and to other irradiation from natural sources of ionising radiation not modified by human activity.

(3) This Decree was notified in accordance with Directive 98 / 34 / EC of the European Parliament and of the Council of 22 June 1998 laying down a procedure for the provision of information in the field of technical standards and regulations and rules and of rules on information society services, as amended by Directive 98 / 48 / EC.

§ 2

Basic concepts

For the purposes of this decree:

(a) by activation - a process in which stable nutrition is transformed into radionuclide by irradiation by particles or by high energy gamma radiation;

(b) normal operation - operation of the source of ionising radiation under the conditions laid down in the permit for its operation or handling and in the approved documentation;

(c) a radiation generator - a device or device emitting ionising radiation, the components of which operate at a potential difference of more than 5 kV, in particular X-ray devices (3) and particle accelerators;

(d) cosmic radiation - ionising radiation of cosmic origin,

(e) medical supervision - monitoring of medical fitness and the development of health status for category A workers from the point of view of possible effects of ionising radiation on their health in the framework of occupational medical services;

(f) monitoring - targeted measurements of radiation, radiation fields or radionuclides, and evaluation of the results of these measurements for the purpose of radiation control;

(g) authorised dosimetric service - a person who, under his own responsibility, performs a reading or interpretation of values registered by personal dosimeters or other external exposure assessments or who carries out measurements of radioactivity in the human body or in biological samples or internal radiation assessments which allow the determination of an annual effective dose or its time (hereinafter referred to as "personal dosimetry services") and who holds a permit under Section 9 (1) (r) of the Act;

(h) authorised medical practitioner, who provides the employer with occupational medical services for category A workers,

(i) personal benefits - aggregate labelling for quantities characterising the degree of external and internal exposure of an individual, in particular the effective dose, the effective time dose and equivalent doses in each organ or tissue; personal benefits are measured by personal dosimeters;

(j) an open radionuclide radionuclide lamp - a radionuclide lamp which is not a closed radionuclide radion;

k) the workplace with open radiators - the workplace where it is handled with open radionuclide lamps,

(l) working position - part of the workplace clearly characterised by its protective (insulating, ventilation and shielding) properties, defined by space or technology (work desk, application or investigation box, digestor, hermetized vacuum housing etc.) where separate works with sources of ionising radiation can be carried out; there may be more than one room if each one constitutes a separate unit from the point of view of the organisation of the work,

(m) natural source of ionising radiation - source of ionising radiation of terrestrial or cosmic origin;

(n) radioactive contamination - contamination of any material or surface, environment or person with a radioactive substance; as regards the human body, includes both external skin contamination and internal contamination regardless of the route of intake,

(o) radiological physicist - medical professional with competence to pursue the profession of radiological physicist under special legislation5b),

(p) radiological devices - medical devices (6) used for investigation or treatment in nuclear medicine, radiotherapy or radiodiagnostic therapy, which is also a source of ionising radiation or which may affect the exposure of patients or other persons undergoing medical exposure,

(r) radiological procedures - any medical treatment in nuclear medicine, radiotherapy or radiodiagnostic;

s) radionuclide - the type of atoms having the same number of protons, the same number of neutrons, the same energy status and subject to spontaneous change in composition or state of atomic nuclei,

(t) radionuclide radionuclide radiator - a source of ionising radiation containing radioactive substances, where the sum of the proportion of the activity of radionuclides and the abatement levels of the activity for these radionuclides is greater than 1 and the sum of the proportion by weight of the activity of radionuclides and abatement levels for these radionuclides is greater than 1;

(u) radiodiagnostic - related to in vivo radiodiagnostic activity in nuclear medicine, medical diagnostic radiology and dental diagnostic radiology,

(v) radiotherapeutic - related to radiotherapy, including nuclear medicine for therapeutic purposes,

w) Particulate accelerator - a radiator with an energy greater than 1 MeV in which particles are accelerated;

x) artificial source of ionising radiation - source of ionising radiation other than natural source of ionising radiation,

(y) closed radionuclide radionuclide radionuclide radionuclide, the treatment of which, for example by encapsulating or covering it, ensures a proven tightness by tests and thus excludes, under foreseeable conditions of use and wear, the leakage of radionuclides from the radionuclide;

z) internal radiation - exposure of a person by ionising radiation from radionuclides occurring in the body of that person, generally as a result of the intake of radionuclides by ingestion or inhalation,

(aa) search examination - diagnostic procedure using radiological equipment for early diagnosis of risk populations;

(bb) discharges - a liquid or gaseous substance released into the environment containing radionuclides in quantities not exceeding the release levels or released into the environment under the conditions specified in the permit for placing radionuclides in the environment,

(cc) external radiation - exposure of a person by ionising radiation from sources of ionising radiation found outside it,

(dd) by the disposal of radioactive waste - the placing of radioactive waste on a storage site or at a specific location without the intention of reusing it; disposal includes the legitimate release of radioactive waste directly into the environment and its subsequent dispersion;

(ee) an abandoned radiator - a closed radionuclide radionuclide lamp which is not under the supervision of the legislation and whose activity at the time of its finding is higher than the exoneration level of activity referred to in Section 5. In particular, an abandoned source is a source which has never been, or has been abandoned, lost, stolen or transferred without notification of the recipient or without notification to the Office under the supervision of the legislation,

(ff) high-activity radiator - a closed radionuclide heater whose activity at the time of manufacture or, if not known, at the time of first placing on the market is equal to or greater than the relevant level of activity listed in Annex 14,

gg) unused source - source of ionising radiation, which is no longer used for an activity for which an authorisation has been granted by the Authority pursuant to Paragraph 9 (1) (i) of the Act and whose further use for that activity is not foreseen,

(hh) recognised storage - a workplace authorised by the Office under the conditions of authorisation under § 9 (1) (d) or (i) of the Act for the collection or long-term storage of radionuclide radionuclide lamps, including high-activity radios, or for their reprocessing.

§ 3

Radiation protection levels

For the purposes of this decree, the quantities of radiation protection shall be:

(a) an equivalent dose of HT, the product of the radiation weighting factor wR listed in Table 1 of Annex 5 and the mean absorbed dos7) DTR in the organ or tissue T for ionising radiation R, or the sum of such products if the ionising radiation field consists of several species or energy;

(b) the effective dose E, which is the sum of the products of the mass weighting factors wT listed in Table 2 of Annex 5 and the equivalent HT dose in irradiated tissues or organs T;

(c) a collective effective or equivalent dose of S, which is the sum of effective or equivalent doses of all individuals in a particular group;

(d) the time-effective dose E (τ), or equivalent dose HT (τ), which is the time-integral of the effective dose power, or equivalent dose, for the duration of the dose from the intake of radionuclide; unless otherwise indicated, this period shall be 50 years for the intake of radionuclides in adults and up to 70 years for the intake of radionuclides in children; Similarly, collective effective or equivalent benefits are also defined at a time,

(e) the dose equivalent H, which is the product of the absorbed dose at the tissue point under consideration and the Q-value factor given in Table 3 of Annex 5, expressing the different biological efficacy of the different types of radiation,

(f) personal dose equivalent Hp (d), which is the dose equivalent at a given point below the body surface at the depth of the tissue d,

(g) the equivalent volume activity of radon aecv, which is the weighted sum of volume activity 7) and 1 polonium 218, the volume activity a2 lead 214 and the volume activity a3 vismuth 214 determined by the relationship aecv = 0,106.a1 + 0,513.a2 + 0,381.a3,

h) Index of mass activity I, which is the number determined by the mass activities K-40, Ra-226 and Th-228

I = aK / 3000 Bq.kg-1 + aRa / 300 Bq.kg-1 + aThh / 200 Bq.kg-1,

(i) intake, which is the activity of radionuclide taken into the human organism from the environment, usually by ingestion or inhalation;

(j) the conversion factor for income, which is an effective dose factor per unit income; conventional values of conversion intake factors by taking iing or inhaling iinh, calculated on the basis of standard models, are shown in the tables in Annex 3,

(k) photon dose equivalent, which is exposure 7) multiplied by the factor 38,76 Sv.C-1.kg.

HLAVA II

CLASSIFICATION OF THE RESOURCES OF THE IONIFICANT DISTRIBUTION

(K § 4 (12) of the Act)

§ 4

Criteria for classifying resources

(1) The sources of ionising radiation are classified as insignificant, minor, simple, significant and very significant according to the increasing threat to health and the environment by ionising radiation, based on:

(a) dose equivalent power;

(b) technical adaptations and methods of implementation;

(c) the activity and mass activity of radionuclide radionuclide radionuclide radionuclide radionuclide emitters, generally in relation to the abatement levels;

(d) the possibility of leaking radionuclides from radionuclide emitters;

(e) the possibility of generating radioactive waste and the difficulty of disposal;

(f) typical handling and associated levels of potential exposure;

(g) the potential threat arising from foreseeable disturbances and deviations from normal operation, unauthorised use or incorrect use;

(h) the risk of a radiation accident or accident, the severity of the consequences of such an event and the possibility of interference.

(2) In view of the typical treatment of sources of ionising radiation, the associated level of potential exposure and the potential risk arising from foreseeable disturbances and deviations from normal operation, the Authority may decide, in the framework of the type-approval provided for in Section 23 of the Act or in the context of the issue of authorisations for the treatment of sources of ionising radiation pursuant to § 9 (1) (i) of the Act or in the context of the issue of authorisations for their manufacture or preparation or of their import or export pursuant to § 9 (1) (s) of the Act, to classifications other than those provided for in § 6 to 10.

§ 5

Relief levels

(1) For each radionuclide, the abatement levels of activity are determined by activity values (7) in the second column of Table 1 of Annex 1 and by the abatement levels of mass activity (7) in the third column of Table 1 of Annex 1. The release levels apply to the total amount of radioactive substances held by 8) one person as part of a specific radiation activity.

(2) For radionuclides identified in the first column of Table 1 of Annex No 1 and listed in Table 2 of Annex No 1, the exemption levels referred to in paragraph 1 shall apply not only to these radionuclides themselves but also to those radionuclides in balance with those of their radioactive transformation products listed in the second column of Table 2 of Annex No 1.

(3) For a mixture of radionuclides, the excess clearance levels are demonstrated by:

(a) the sum of the activities of individual radionuclides and the respective activity abatement levels shall not exceed 1; or

(b) the sum of the contributions by weight of the activities of individual radionuclides and the respective abatement levels of mass activities is not more than 1;

for the totals referred to in points (a) and (b), the percentages for all radionuclides represented in the substance, excluding the radionuclides listed in the second column of Table 2 of Annex No 1, shall always be added.

(4) The release levels shall not apply to the introduction of radionuclides into the environment. The introduction of radionuclides into the environment from authorised radiation activities is subject to the release levels provided for in Section 57. The release of radionuclides into the environment from work activities with increased radiation from natural sources is subject to the release levels provided for in Section 89.

§ 6

Unsignificant resources

An insignificant source of ionizing radiation is

(a) electrical equipment emitting ionising radiation but not containing components operating with a voltage difference exceeding 5 kV;

(b) cathode-ray tube intended for imaging or any other electrical device operating at a potential difference of not more than 30 kV where the power input of batch equivalent at any point accessible at a distance of 0,1 m from the surface of the device is less than 1 μSv / h;

(c) a radioactive substance for which the sum of the proportion of the activity of radionuclides and the respective abatement levels of the activity is not more than 1 or the sum of the proportion of the activity of radionuclides by weight and the respective abatement levels of the activity by mass not more than 1;

(d) a closed radionuclide radionuclide lamp, for which the sum of the shares of the activities of the radionuclides and the respective abatement levels of the activities of the radionuclides and their respective abatement levels of the activity is not more than 10;

(e) a device containing a closed radionuclide radionuclide lamp designed to power dose equivalent at any accessible location at a distance of 0,1 m from the surface of the device is less than 1 μSv / h, while taking into account the typical way in which it is handled, the associated level of potential exposure and the potential risk arising from foreseeable disturbances and deviations from normal operation, this classification has been confirmed in the framework of the type approval provided for in Section 23 of the Act or in the context of the authorisation for the treatment of sources of ionising radiation pursuant to Section 9 (1) (i) of the Act for the production, import or distribution of such equipment;

(f) material contaminated with radionuclide resulting from the authorised placing into the environment of radionuclides pursuant to Article 9 (1) (h) of the Act, unless otherwise provided by the Office under the terms of the relevant authorisation,

(g) a consumer product with radionuclides, including ionisation fire detectors, not covered by the provisions of Section 7 (e), unless otherwise provided in the context of the authorisation to manufacture or prepare them or for their import or export under Section 9 (1) (s) of the Act.

§ 7

Small resources

A small source of ionising radiation is

(a) a radiation generator which is not an insignificant source, designed so that the power input of the batch equivalent at any accessible point at 0,1 m from the surface of the device is less than 1 μSv / h except for those designated under normal working conditions for handling and operation of the equipment solely by hands where the power input of the batch equivalent can reach up to 250 μSv / h;

(b) a closed radionuclide radionuclide lamp which is not an insignificant source, for which the sum of the activities of radionuclides and the respective activity abatement levels, or the sum of the activities of radionuclides by mass and their respective abatement levels, is less than 100 for long-term alpha-lamps, including alpha-neutron sources, and less than 1000 in other cases;

(c) a device containing a closed radionuclide radionuclide lamp which is not an insignificant source, designed so that the power of batch equivalent at any accessible point at 0,1 m from the surface of the device is less than 1 μSv / h, except for places intended under normal working conditions for handling and operation of the device solely by hand, where the power of batch equivalent may be up to 250 μSv / h, where, in view of their typical handling, the associated level of potential exposure and the potential risk arising from foreseeable disturbances and deviations from normal operation, this classification has been confirmed under the type approval under § 23 Act or under the issue of a authorisation for the treatment of sources of ionising radiation under § 9 (1) of the Act for the production, import or distribution of such equipment;

(d) an open radionuclide radionuclide lamp which is not an insignificant source, for which the sum of the activities or activities of individual radionuclides and the values of the activities or activities of these radionuclides listed in Table 1 of Annex 1 is less than 10;

(e) ionisation fire detectors for which the sum of the radiant activities is greater than 10 times the relevant exoneration level of the activity, located simultaneously in one building and held by one person.

§ 8

Simple resources

Simple sources of ionising radiation are all sources of ionising radiation which are not insignificant, small, significant or very significant sources of ionising radiation.

§ 9

Significant resources

A significant source of ionising radiation is:

(a) radiation generator intended for radiotherapy or radiodiagnostic purposes in human medicine, except bone densitometers, cabin X-ray equipment and dental X-ray equipment;

(b) a particle accelerator for which, taking into account the typical way in which it is handled, the associated level of potential exposure and the potential risk arising from foreseeable disturbances and deviations from normal operation, this classification has been confirmed in the framework of the type-approval pursuant to Article 23 of the Act or in the framework of the authorisation for the treatment of sources of ionising radiation pursuant to Article 9 (1) (i) of the Act;

(c) a source of ionising radiation intended for radiotherapy of protons, neutrons and other heavy particles;

(d) equipment containing closed radionuclide radionuclide lamps intended for radiotherapy, including brachytherapy, except where, in view of its typical handling, the associated level of potential exposure and the potential risk arising from foreseeable disturbances and deviations from normal operation, a different classification has been provided for under the type-approval provided for in Article 23 of the Act or in the framework of the authorisation for the treatment of ionising radiation sources under Article 9 (1) (i) of the Act;

(e) radionuclide irradiation for the irradiation of food and raw materials or other stationary industrial irradiator for which, with regard to the content of radionuclides, the dose input and the typical way of handling them, the associated level of potential irradiation and the potential risk arising from foreseeable disturbances and deviations from normal operation, this classification has been confirmed in the framework of type-approval pursuant to Section 23 of the Act or in the framework of the authorisation for the disposal of source ionising radiation pursuant to Section 9 (1) (i) of the Act;

(f) mobile defectoscope with closed radionuclide radionuclide lamps,

g.

§ 10

Very significant resources

A nuclear reactor is a very important source of ionizing radiation.

HLAVA III

CATEGORISATION OF WORK WHERE RADIATION ACTIVITIES ARE CARRIED OUT

(K § 4 (12) of the Act)

§ 11

Criteria for categorisation of workplaces

(1) In addition to workplaces where only insignificant or type-approved small sources of ionising radiation are used, the workplaces where radiation activities are carried out are categorised in ascending order according to health and environmental hazards by ionising radiation at workplaces I, II, III and IV based on:

(a) classification of sources of ionising radiation which are expected to be handled at the workplace;

(b) expected normal operation of the workplace and associated levels of potential exposure to workers and the population;

(c) the focus of radiation activity and the difficulty of ensuring radiation protection and quality in such activity;

(d) equipment and provision of a workplace for safe operation with sources of ionising radiation, in particular protective equipment, insulating and shielding devices, ventilation and drainage;

(e) the possibility of radioactive contamination of the workplace or its surrounding radionuclide;

(f) the possibility of creating radioactive waste and the difficulty of disposal;

(g) potential hazards arising from foreseeable disturbances and deviations from normal operation;

(h) the risk of a radiation accident or accident, the severity of the consequences of such an event and the possibility of interference.

(2) The workplaces not referred to in Sections 12 to 15 are to be classified in Category II if the Authority does not decide on a different categorisation in the context of the procedure for the authorisation to dispose of the source of ionising radiation under Section 9 (1) (i) of the Act. In view of the typical mode of operation of the workplace and the associated level of potential exposure to workers and the population and the potential risk arising from foreseeable disturbances and derogations from normal operation, the Authority may decide, in the context of the procedure for the issue of a permit for the operation of the workplace under § 9 (1) (d) of the Act or the authorisation for the management of sources of ionising radiation under § 9 (1) (i) of the Act, to categorise other than those referred to in § 12 to 15.

§ 12

Category I workplaces

Category I workstation is

(a) workplaces with small type-approved sources of ionising radiation;

(b) a workplace with a bone densitometer,

(c) a workplace with a veterinary, dental or cabin X-ray device;

(d) a workplace with an indication or measuring device containing a closed radionuclide lamp where the nature of the radiation activity does not require the delineation of the controlled zone;

(e) a workplace with a technical X-ray device where the nature of the radiation activity does not require the definition of a controlled zone;

(f) a workplace with open radionuclide radionuclide lamps, provided that the equipment of insulating and ventilation devices and the level of drainage performance complies with the relevant minimum requirements set out in Table 1 of Annex 4 and the Authority has confirmed its classification in this category in the context of the issue of a permit for the management of ionising radiation sources pursuant to Article 9 (1) (i) of the Act.

§ 13

Category II worksite

Category II workspace is

(a) a workplace with a simple source of ionising radiation which is not a Category I workplace;

(b) workplaces with X-ray equipment intended for radiodiagnostic or radiotherapy, except bone densitometers, cabin and dental X-ray equipment, and excluding veterinary X-ray equipment;

(c) a workstation with a mobile defectoscope with a closed radionuclide radionuclide radiator;

(d) a mobile irradiator with a closed radionuclide radionuclide radiator, other than those where, in view of the typical mode of operation of the workplace, the associated level of potential irradiation and the potential risk arising from foreseeable disturbances and deviations from normal operation, their classification in another category has been determined in the framework of the procedure for the authorisation to operate the workplace pursuant to § 9 (1) (d) of the Act or the authorisation to dispose of the source of ionising radiation pursuant to § 9 (1) (i) of the Act for the treatment of these irradiators;

(e) workplaces with indication or measuring devices containing closed radionuclide radionuclide lamps where the nature of the radiation activity requires the delineation of the controlled zone;

(f) a workplace with technical X-ray equipment where the nature of the radiation activity requires the definition of a controlled zone;

(g) a workplace with open radionuclide radionuclide radiators, where the equipment of insulating and ventilation devices and the level of drainage performance complies with the relevant minimum requirements set out in Table 1 of Annex 4 and the Authority has confirmed its classification in this category in the context of the issue of a permit for the management of ionising radiation sources pursuant to Article 9 (1) (i) of the Act;

(h) a workplace with a compact extracurricular blood irradiator with a closed radionuclide radiator.

§ 14

Category III workplaces

Category III worksite

(a) a particle accelerator workplace, other than those where, in view of the typical operation of the workplace, the associated level of potential exposure and the potential risk arising from foreseeable disturbances and deviations from normal operation, their inclusion in another category was determined in the framework of the procedure for the authorisation to operate the workplace pursuant to § 9 (1) (d) of the Act or for the treatment of sources of ionising radiation under § 9 (1) (i) of the Act;

(b) a workplace with a device containing a closed radionuclide lamp intended for radiotherapy, including brachytherapy, classified as a major source;

(c) a recognised warehouse;

(d) a workplace with open radionuclide radionuclides, provided that the equipment of insulating and ventilation devices and the level of drainage performance complies with the relevant minimum requirements set out in Table 1 of Annex 4 and the Authority has confirmed its classification in this category in the context of the issue of the authorisation for the management of ionising radiation sources pursuant to Article 9 (1) (i) of the Act;

(e) a workplace with a stationary industrial irradiation device intended to irradiate foodstuffs and raw materials, objects of normal use or other materials;

(f) a site for the extraction and processing of uranium ore involving extraction, treatment, handling of concentrate, operation of decontamination stations, collection of mining products on fences and sludge fields.

§ 15

Category IV workspace

Category IV workspace is

(a) nuclear installations within the meaning of § 2 (h) (1) of the Act;

(b) storage of radioactive waste within the meaning of § 2 (u) of the Act;

(c) open-source radionuclide radionuclide radionuclides, which cannot be classified in the lower category with regard to high activity at the same time in one working place, the typical mode of operation of the workplace and the associated level of potential exposure and the potential risk arising from foreseeable deviations from normal operation, accidents or accidents;

(d) the storage of spent or irradiated nuclear fuel.

§ 16

Classification of radiation workers

(K § 4 (12) of the Act)

(1) For the purposes of monitoring and medical supervision, radiation workers shall be classified in category A or B according to the health threat to ionising radiation on the basis of expected exposure in normal operation and foreseeable disturbances and deviations from normal operation, except for exposure due to a radiation accident or accident.

(2) Category workers A are radiation workers who could receive an effective dose of more than 6 mSv per year or an equivalent dose of more than three tenths of the exposure limit for the lens, skin and limb set out in § 20 (1) (c) to (e); other radiation workers are Category B workers.

HLAVA IV

OPTIMATION AND LIMITS OF THE DISEASES

(K § 4 (4) and (6) of the Act)

§ 17

Optimisation of radiation protection

(1) Optimisation of radiation protection is performed

(a) prior to the commencement of the exposure activity by assessing and comparing the options for the radiation protection solutions that are considered in the intended activity and by assessing the necessary costs of appropriate protective measures, the assessment of collective doses and doses for relevant critical populations;

(b) in carrying out irradiation activities by regularly analysing the doses received in relation to the operations carried out, considering possible further measures to ensure radiation protection and comparing them with similar previously operated and socially acceptable activities;

Citation	Decree of the State Office for Nuclear Safety No. 307 / 2002 Coll., on Radiation Protection
Regulation Type	Order
Author	-
Collection	Code of Laws

Date of Promulgation	12.07.2002
Effective from	12.07.2002
Effective until	-
Status	Valid

Decree No. 307 / 2002 Coll.

State Office of Nuclear Safety Decree on Radiological Protection

Contents

ČÁST PRVNÍ

HLAVA I

§ 1

§ 2

§ 3

HLAVA II

§ 4

§ 5

§ 6

§ 7

§ 8

§ 9

§ 10

HLAVA III

§ 11

§ 12

§ 13

§ 14

§ 15

§ 16

HLAVA IV

§ 17

Contents

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