Decree No. 13 / 2026 Coll.
Decree amending Decree No. 422 / 2016 Coll., on Radiological Protection and Security of Radionuclide Source
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Effective from 01.02.2026
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13
DECLARATION
of 22 January 2026
amending Decree No. 422 / 2016 Coll., on Radiological Protection and Security of Radionuclide Source
The State Office for Nuclear Safety sets out, pursuant to § 236 of Act No. 263 / 2016 Coll., the Atomic Act, as amended by Act No. 83 / 2025 Coll., to implement § 9 (2) (c) and (j), § 17 (3), § 24 (7), § 25 (2) (a) to (d), § 69 (2) (b) and § 77 (2), § 78 (3), § 69 (5), § 87 (5), § 74 (4), § 75 (5) (a), § 76 (6), § 77 (2), § 78 (3), § 81 (5), § 73 (3), § 74 (4), § 75 (5) (a), § 76 (6), § 77), § 77 (3), § 81 (3), § 81 (3), § 83 (5), § 73 (3), § 73 (3), § 74 (5), § 74 (5), § 74 (5), § 69 (5), § 69 (5), § 69), § 69 (5)
Decree No. 422 / 2016 Coll., on Radiation Protection and Security of Radionuclide Source, is amended as follows:
1. In the introductory sentence, the words "and (k) ', the words" Paragraph 84 (6)' shall be inserted after the words "(i) ', the words" Paragraph 84 (6)' shall be deleted, the number "4 'shall be replaced by the number" 5' and the words "9 'shall be inserted after the words', Article 159a (5) ';
2. in § 2 (q):
"(q) the conversion factor for receiving radionuclide, the coefficient indicating the time-effective dose per unit dose of radionuclide; the conventional values of conversion factors for radionuclide intake are set out in Annex 3 to this Decree, ';
3. In Article 2 (v), at the end of the comma, "a 'is replaced by" a'.
4. In Article 2 (w), the word "," and "shall be replaced by a dot.
5. in Section 2, point (x) is deleted;
6. In Article 5 (1), the words "or registrant" shall be inserted after the words "authorisation."
7. In Article 6 (4) of the introductory part of the provision, the word "paragraph 'is replaced by" paragraphs'.
8. In Article 6 (4) of the introductory part of the provision, the words "up to 8 'are inserted after the words" 6'.
9. Paragraph 6 (5) and (6) read:
"(5) For the calculation referred to in paragraph 4, the conversion factor set out in Annex 3 to this Decree for all unspecified forms of radionuclide shall be used for the unidentified form and properties of radionuclide.
(6) The derived limit corresponding to the effective dose of 20 mSv for exposure to mixtures of long-term radionuclides emitting alpha uranium-radio series is the intake of 1,600 Bq per calendar year. '
10. In Article 6, the following paragraphs 7 and 8 are added:
"(7) The derived limit corresponding to the effective dose of 20 mSv for radiation of radon transformation products is the intake of latent energy in underground workplaces
(a) with forced ventilation of 8 mJ per calendar year,
(b) with natural ventilation of 4 mJ per calendar year.
(8) In the event that the radiation worker is simultaneously exposed to external and internal radiation products of radon conversion and mixtures of long-term radionuclides emitting alpha uranium radiated series, the limit for external radiation workers is considered not to be exceeded, if met, that Eext + Eint, Rn + Eint, dl.alpha ≤ 0,02 Sv, kdeEext (Sv) is the effective dose of external radiation radiation by gamma, Eint, Rn (Sv) is the time effective dose from internal irradiation products of radon, Eint, dl.alpha (Sv) is the time of effective dose from internal irradiation through a mixture of long-term radionuclides emitting alpha uranium radial series. '
11. In § 8 the reference reads:
"[Paragraph 24 (7) and Paragraph 66 (6) (c) of the Atomic Act] '.
12. in Paragraph 8 (5) of the introductory part of the provision, the word "Documentation" is replaced by "Procedures."
13. In Article 10 (1), the words "used by a person 'are replaced by the words" to which it is treated' and the word "treated 'is added at the end of the text.
14. in Article 15 (a):
"(a) a radiation generator intended for medical exposure, except for an X-ray bone densitometer, an intraoral dental X-ray device and a panoramic X-ray device;"
15. at the end of the text, the words "with energy above 1 MeV" shall be added.
16. in Article 15 (e), the word "articles," is replaced by "tissues, blood and objects."
17. in Paragraph 15 (f), the word "or" shall be deleted;
18. at the end of Paragraph 15 (g), the dot is replaced by "or."
19. in Article 15, the following point (h) is added:
"(h) a radiation generator used in veterinary radiotherapy for treatment purposes."
20. In Paragraph 18 (1), the words "the collection takes place 'are replaced by the words" more'.
21. in Article 19 (1) (a), the words "the type of which is not approved by the Office," shall be deleted;
22. in Article 19 (1) (c), the words "with veterinary or" shall be replaced by "with."
23. in Paragraph 19 (1) (e), the word "a" shall be deleted;
24. in Article 19 (1) (f), the end of the period shall be replaced by "a."
25. in Article 19 (1), the following point (g) is added:
"(g) workplaces with X-ray equipment used in veterinary medicine, except radiotherapy for treatment purposes."
26. in § 19 (2) (b):
"(b) a workplace with X-ray equipment intended for medical exposure in radiodiagnostic or radiotherapy, except:
1. bone densitometer; or
2. dental X-ray equipment, '.
27. in Paragraph 19 (2) (f), "a" is deleted;
28. in Article 19 (2) (g), the words "and tissue" shall be inserted after the word "blood."
29. in Paragraph 19 (2) (g), the end of the period shall be replaced by "a."
30. in Article 19 (2), the following point (h) is added:
"(h) a workplace with X-ray equipment used in veterinary radiotherapy for treatment purposes."
31. in Article 19 (3) (a), the words "with energy above 1 MeV" shall be added at the end of the text.
32. in Article 21 (2) (d), the words "including software and tools of artificial intelligence" shall be inserted after the words "accessories."
33. in Paragraph 21 (2) (d), the word "have" shall be replaced by "have."
34. in Article 21 (2) (l), the words "preventive medical" are replaced by the words "occupational medical."
Article 35 (26) reads:
Receiving test
[Articles 68 (2) (a) and (k) and 69 (2) (c) and (g) of the Atomic Act]
(1) The acceptance test shall be carried out after installation of the source of ionising radiation prior to its use
(a) for a newly produced source of ionising radiation,
(b) after a significant change in most of the characteristics of the source of ionising radiation or its accessories,
(c) after moving a stationary source of ionising radiation,
(d) after moving the mobile source of ionising radiation to another address,
(e) after changing the holder of the authorisation to use it and at the same time the address of the workplace in the case of a portable radiation generator used for medical exposure or in veterinary medicine; or
(f) after another change which may significantly affect the functionality of the source of ionising radiation.
(2) The acceptance test shall be carried out at a time when the source of ionising radiation and the workplace are capable of performing it.
(3) The acceptance test shall include the tests listed in Annex 12 to this Regulation.
(4) The restricted operation in the case of non-compliant results of the receiving test may be determined only in the case of a source of ionising radiation used by the holder of a medical exposure permit, provided that the non-compliant results relate to a specific limited mode of use of the ionising radiation source, while there is another limited mode of operation that is fully valid for the specific purpose of its use and without defects. In that case,
(a) the person managing the acceptance test may, in cooperation with the clinical radiological physicist of the workplace at which the source is used, declare the acceptance test successful for this specific restricted regime, while at the same time providing for operating restrictions corresponding to the facts established;
(b) the restriction of operation, with its reasons, shall be recorded in writing by the person managing the acceptance test, together with a clinical radiological physicist, and shall transmit this record without delay to the authorisation holder or the registrant who will use the source of ionising radiation; and
(c) the restriction of operation with its reasons shall be indicated by the person driving the acceptance test in the report from the acceptance test.
(5) The operating limitations may be modified or cancelled after the removal of the cause of non-compliant results and on the basis of the results of the successful partial acceptance test.
(6) The person carrying out the acceptance test must adapt its scope to the specific purpose of use and to the specific characteristics of the source of ionising radiation and its accessories affecting radiation protection.
(7) The holder of the authorisation which has carried out the acceptance test shall transmit the acceptance test report to the holder of the authorisation or to the registrant using the source of ionising radiation no later than 1 month after the date of the test. ';
36. in Paragraph 27 (1) (f), "a" is deleted;
37. Paragraph 27 (1) (g) shall be replaced at the end of the period by the words "except for a minor defect with no impact on radiation protection, for which the protocol of the long-term stability test at which the defect was first identified indicates that its removal may be confirmed by an operational stability test."
38. in Paragraph 27 (1), the following points (h) and (i) are added:
"(h) in the case of the removal of the reason for the restricted operation referred to in Article 30 (3); and
(i) a significant change in the way the source of ionising radiation is used which affects the parameters tested by the long-term stability test. "
39. in Paragraph 28 (1):
"(1) The content of the long-term stability test is set out in Annex 12 to this Decree."
40. in Paragraph 29 (1) (e), the words "protection," and "protection," shall be replaced by "protection."
41.In Paragraph 29 (1) (f):
"(f) Article 27 (1) (g) has been verified
1. the defect detected in the previous long-term stability test has been corrected; and
2. the removal of this defect did not cause any other defect, '.
42.In Paragraph 29 (1), the following points (g) and (h) are added:
"(g) Paragraph 27 (1) (h) has been verified that the reason for the limited operation under Paragraph 30 has been removed; and
(h) Paragraph 27 (1) (i) has been verified that the installation complies with the requirements of the long-term stability test even in the extent of the newly introduced use. "
43.
Evaluation of the long-term stability test and correction of defects
[K § 68 (2) (g) and § 69 (2) (g) of the Atomic Act]
(1) The rules on categorisation of very serious and minor defects identified in the long-term stability test are set out in Annex 12 to this Decree.
(2) The long-term stability test report shall be transmitted by the authorisation holder who carried out it to the authorisation holder or to the registrant using the source of ionising radiation, no later than 1 month after the date of the test.
(3) In the case of non-compliant results in the long-term stability test, the limited operation may be determined only in the case of a source of ionising radiation used by the holder of a medical exposure permit, provided that the non-compliant results relate only to a specific limited mode of use of the ionising radiation source, while there is another limited mode of operation that is fully valid for the specific purpose of its use and without defects. In such a case, the person managing the long-term stability test, in cooperation with the clinical radiological physicist of the workplace at which the source is used, may declare the long-term stability test successful for this specific limited regime and, at the same time, provide for operating restrictions that correspond to the facts found.
(4) The restriction of operation and its reasons must be recorded in writing by the person conducting the long-term stability test, together with the clinical radiological physicist, and transmitted without delay to the authorisation holder or the registrant using sources of ionising radiation. Traffic limitations and its reasons must also be stated in the long-term stability test report.
(5) If the partial long-term stability test referred to in Paragraph 29 (1) (g) shows that the reason for the restricted operation has been removed, the operating restriction shall be lifted.
(6) If a very serious defect is detected during the long-term stability test, the holder of the authorisation carrying out the test shall immediately inform the holder of the authorisation or the registrant using the source of ionising radiation and his clinical radiological physicist, if it is required to be available under another legislation, and indicate it in the protocol of the long-term stability test.
(7) The period for the removal of minor defects and operational restrictions resulting from such defects must be limited by the authorisation holder conducting the long-term stability test.
(a) immediately after detection of this defect, communicate to the holder of the authorisation or the registrant using the source of ionising radiation and to his clinical radiological physicist, if otherwise required, and
(b) indicate them in the report from the long-term stability test.
(8) In determining the time limit for the removal of a minor defect referred to in paragraph 7, which shall not exceed 3 months and shall run from the date of the long-term stability test at which the defect was first detected, account shall be taken of the nature of the minor defect detected and the way in which the source of ionising radiation and its accessories are used in the normal manner, which affects radiation protection. ';
44. The following Section 30a is inserted after Section 30:
Scope and manner of carrying out the activities of persons managing and performing assessments of the characteristics of the source of ionising radiation
[Paragraph 69 (2) (f) of the Atomic Act]
(1) Person managing the assessment of the properties of the source of ionising radiation
(a) provide methodological guidance for persons carrying out assessments of the properties of the source of ionising radiation, and, where appropriate, those assisting in this, and their professional and continuous training in this field;
(b) ensure that good practice is maintained in assessing the properties of the source of ionising radiation, in particular taking into account the current scientific state of knowledge and technological developments;
(c) establish and update methodologies, model protocols and the concept of ensuring measurement of quantities and maintain them in accordance with the requirements of good practice, the actual state of activity and the requirements of the atomic law;
(d) be responsible for the metrological provision of the activities carried out and for the availability and suitability of measuring aids;
(e) in the event of an occurrence or suspected occurrence of defects at a source of ionising radiation not used in radiodiagnostic equipment, in intervention radiology or for non-medical exposure, classify them in the category and determine the time limits for their removal, or, where appropriate, establish operational restrictions resulting from a minor defect;
(f) in the event of the occurrence or suspected occurrence of very serious defects or atypical minor defects at the source of ionising radiation used in radiodiagnostic, interventional radiology or non-medical exposure, it shall classify, determine the time limits for their removal and, where appropriate, fix operational restrictions resulting from a minor defect;
(g) determines the procedure for the test in the case of an atypical source of ionising radiation or its accessories or atypical findings during the test;
(h) in the case of a taking-over test or in the case of a long-term stability test in which the insuitability of the current scope or frequency of the operational stability tests has been detected, it shall draw up a proposal for their amendments or a new proposal;
(i) assess whether the workplace and source of ionising radiation are technically fit to begin the test;
(j) if necessary, take part in the test personally and carry out an assessment of the properties of the source of ionising radiation, including the evaluation of the results;
(k) in the case of evaluation of the properties of the source of ionising radiation not used in radiodiagnostic, interventional radiology or non-medical exposure, evaluate the results of the tests;
(l) in cooperation with the clinical radiological physicist of the workplace, which uses a source of ionising radiation, it provides for operating restrictions pursuant to Sections 26 (4) and 30 (3).
(2) Person evaluating the properties of the source of ionising radiation
(a) perform an assessment of the properties of the source of ionising radiation in standard circumstances and record the measured values;
(b) in the case of evaluation of the properties of the source of ionising radiation used in radiodiagnostic, interventional radiology or non-medical exposure, evaluate the results of the tests;
(c) in the case of a taking-over test or long-term stability test in which the insuitability of the current range or frequency of operational stability tests has been identified, the person managing the assessment of the properties of the ionising radiation source shall submit the supporting documents for the design of its amendment or new design;
(d) in the event of an occurrence or suspected occurrence of common minor defects at the source of ionising radiation used in radiodiagnostic, interventional radiology or non-medical exposure, classify them in the category, determine the time limits for their removal, or, where appropriate, establish operational restrictions resulting from a minor defect; in other cases, the management shall require the management to conduct an assessment of the properties of the source of ionising radiation,
(e) in the case of an atypical source of ionising radiation or its accessories or atypical findings during the test, the methodological guidance shall be sought by the person responsible for evaluating the properties of the ionising source at the measuring site. "
45. in Paragraph 31 (2) (b) (4), "a" is deleted;
46. at the end of Paragraph 31 (2) (c) (4), "a" is replaced by "a."
47. in Article 31 (2), the following point (d) is added:
"(d) in the case of a source of ionising radiation used in the skiography or mammography, analysis of repeated images every 12 months.";
48. in § 32 the reference reads:
"[K § 68 (2) (c) to (f) of the Atomic Act] '.
49. in § 32 (1) (a) (2):
"2. a healthcare professional who uses in clinical practice a source of ionising radiation, or, if the operating conditions so require, a radiological physicist or a radiological technician, as regards an operational stability test for a computational tomography, including a computational tomography used in nuclear medicine and radiotherapy,"
50. In Section 32 (2) of the Introductory Part of the provision, the words "mandatory to ensure verification of the properties of the source of ionising radiation through 'are replaced by the words" control' and the words "continuous evaluation of the results of this test and, in the case of non-compliant results, the implementation of corrective measures' are deleted.
51.Paragraph 32 (3) shall be deleted;
Paragraphs 4 and 5 shall be renumbered paragraphs 3 and 4.
52. In Paragraph 32, the following paragraph 3 is inserted after paragraph 2:
"(3) Person conducting the operational stability test
(a) it shall be responsible for the operation of the operational stability test system, the training of personnel carrying out the operational stability tests and the identification of the aids needed for their implementation;
(b) be responsible for the system of transmission of information on the results and corrective actions referred to in paragraphs 4 and 5;
(c) choose the appropriate way of their implementation and recording; and
(d) determine the scope and frequency of the operational stability tests of the holder of the authorisation. ';
Paragraphs 3 and 4 shall be renumbered paragraphs 4 and 5.
53.In Paragraph 32 (4) (b), "a" is replaced by a comma.
54. in Article 32 (4) (c):
"(c) be available to the person conducting the operational stability test and ';
55. in Paragraph 32 (4), the following point (d) is added:
"(d) in the case of non-compliant results, promptly transmitted to the person conducting the operational stability test."
56. In Article 32 (5), the word "without delay" shall be inserted after the word "measures."
57. In Paragraph 33 (3) of the Introductory Part of the provision, the words "or voluntarily assist a natural person undergoing a controlled medical exposure zone 'are deleted.
58. in Paragraph 33 (3) (c), the words "or other unique identifier" shall be added at the end;
59.In Paragraph 33 (5), "Personal benefits" is replaced by "Data on personal benefits."
60. In Article 33 (7), the words "as required" shall be inserted after the word "format" and the words "through the holder of the authorisation to perform personal dosimetry" shall be added at the end of the text.
61. in Paragraph 35 (4), the word "Model" shall be replaced by "Content requirements."
62. In Paragraph 38 (2) (k), the words "atomic law" are replaced by the words "this decree."
63.Paragraph 38 (3) reads as follows:
"(3) The acceptance test report and the record of operating restrictions referred to in Article 26 (4) shall be kept by the authorisation holder or the registry using the source of ionising radiation for the duration of use of the source of ionising radiation. ';
64. In Article 38 (4), the words "to be retained 'are replaced by the words" the holder of an authorisation or a registrant who uses the source of ionising radiation', the words "long-term stability retained 'are replaced by the words" long-term stability by the holder of the authorisation or by the registry which uses the source of ionising radiation' and the words "at the end of the text are added '. A record of the operating restrictions referred to in Article 30 (3) shall be kept by the authorisation holder or the registry using the source of ionising radiation throughout the period of validity of that restriction.'
65.In § 39 the reference reads:
"[Paragraph 25 (1) (h) and Paragraph 2 (d) of the Atomic Act] '.
66. in Article 39 (3), the words "and the registrar 'are replaced by the words" the holder of the authorisation for the addition of a radioactive substance to the consumer product in its manufacture or preparation or for the import and export of such a consumer product and the registrar';
67.In Article 43 (3) (l), the word "test 'is replaced by" test control';
68. In Paragraph 43, paragraphs 4 and 5 are added:
"(4) For the purposes of effective radiation protection, the number of workplaces where the supervised entity has continuous supervision shall be considered excessive if there are more than 75 generators and facilities with closed radionuclide sources at those workplaces or where more than 25 permit holders are employed. This restriction shall not apply to the provision of continuous supervision by the supervising entity to holders of authorisations under § 9 (2) (f) (6) and (i) of the Atomic Act.
(5) The supervising officer shall cooperate with a clinical radiological physicist where other legislation requires its availability. ';
69.Paragraph 46 (7) reads as follows:
"(7) In the controlled zone, only a category A radiation worker may perform work related to the radiation activity for which the controlled zone is defined. Another natural person may only enter the controlled zone in justified cases and carry out the necessary or random activity there for as long as necessary and under the supervision of a category A radiation worker designated by the operator of the controlled zone, or if it is a category B radiation worker, an activity consisting of providing assistance to a natural person undergoing medical exposure. '
70. In Paragraph 46 (8), the words "for the purpose of administrative and control activities' shall be added at the end of the text.
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Regulation Information
| Citation | Decree No. 13 / 2026 Coll., amending Decree No. 422 / 2016 Coll., on Radiological Protection and Security of Radionuclide Source |
|---|---|
| Regulation Type | Order |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 29.01.2026 |
|---|---|
| Effective from | 01.02.2026 |
| Effective until | - |
| Status | Valid |
Public Contracts 1
čp 32, byt č. 6, byt č. 7, byt č. 16, byt č. 36 - zpracování rozpočtů na opravu 4 bytů
Město Vodňany
Vlastimil Vondrys
09.01.2026
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