IAEA International Atomic Energy Agency Revision of the International Basic Safety Standards - BSS...

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Revision of the International Revision of the International Basic Safety Standards - BSS 115Basic Safety Standards - BSS 115

- Status- Status Report - Report -

Renate Czarwinski & Pascal DeboodtRenate Czarwinski & Pascal Deboodt

Radiation Safety and Monitoring SectionDivision for Radiation, Transport and Waste Safety

Department of Nuclear Safety and Security

2008 ISOE International ALARA SymposiumTsuruga, Japan, 13 – 14 November

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Revision of BSS SS115Revision of BSS SS115

International Basic Safety Standards for Protection

against Ionizing Radiation and for the Safety of Radiation

Source

Status of revision: draft 1.0

International Cooperation withWHO, PAHO, FAO, ILO, OECD/NEA, EC,

UNEP, ICRP, IRPA

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BSS revision processBSS revision process

● Initial topical drafting meetings that were completed in May 2007

● Collation of the drafting group material by the IAEA Secretariat

● The recommendations of a Technical Meeting (TM) held in Vienna from 16-20 July 2007

● Additional advice from a meeting of Cosponsoring Organizations from 3-4 September 2007

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● Recommendations from RASSC/WASSC in their Recommendations from RASSC/WASSC in their meeting in October 2007meeting in October 2007

● Drafting meeting with cosponsoring organizations and invited experts from 26 – 30 November 2007

● Drafting meeting with cosponsoring organizations and invited experts from 10 – 14 March 2008

● Drafting meeting with cosponsoring organizations and invited experts from 7 – 11 April 2008

● Review/drafting meeting with cosponsoring organizations 13 -16 May 2008

● Draft 1.0 made available by end June 2008

BSS revision process (2)BSS revision process (2)

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1. Introduction

• Background• Objective• Scope• Structure

Includes explanatory text on system of protection and safety, types of exposure situation, dose constraints and reference levels, protection of the environment, quantities and units

Revision BSS - Draft 1.0Revision BSS - Draft 1.0

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2. General Requirements for Protection and Safety

• Responsibilities of government• Responsibilities of regulatory body• Principal parties• Management requirements• Implementation of radiation protection principles

Contains requirements that apply to all types of exposure situations


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3. Planned Exposure Situations

• Scope• Generic requirements• Occupational exposure• Public exposure• Medical exposure

Generic requirements include administrative requirements for notification and authorization, exemption and clearance, application of the system of protection and safety including justification, optimization, and dose limitation, and justification and regulatory control of non-medical imaging.


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4. Emergency Exposure Situations

• Scope• Generic Requirements• Public exposure• Exposure of emergency workers, • Transition from an emergency exposure situation to

existing exposure situation


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5. Existing Exposure Situations

• Scope

• Generic Requirements

• Public exposure

• Occupational exposure

Specific requirements for remediation of contaminated areas (supersede WS-R-3), radon in homes and workplaces, and

radionuclides in commodities


RiverTailings

Landslip

Landslip

Landslip

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Schedules

• Schedule I: Exemption and Clearance• Schedule II: Dose limits for planned exposure

situations• Schedule III: Criteria for use in emergency

preparedness and response• Schedule IV: Categorization of radioactive sources


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Issues requiring further work

• Section 1 Background: explanation of the system of protection and safety:

• Level of detail on dose constraints / reference levels to be included in section 1. Balance with other parts of the section 1 and guidance on selecting dose constraints / reference levels will be provided in Safety Guides supporting the BSS

• Radon in planned exposure situations / existing exposure situations

• Issue about maximum value for the reference level for workplace and for dwellings

• On-going work by ICRP


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Issues requiring further work

• Exemption and clearance levels

• Current BSS exemption levels apply for up to 1 ton of material, and are also used as exemption levels for transport of radioactive material.

• RS-G-1.7 levels apply to bulk quantities of material.

• Issue about whether the levels in the current BSS are still required.


• Glossary

• BSS within the Long Term Structure of Safety Requirements

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BSS revision: milestonesBSS revision: milestones

● End June 2008 : Draft 1.0 completed complete ‘clean’ draft, together with tracking and justification

of changes from SS115

● October / November 2008 – All Committees to conduct full first review of Draft 1.0 : ongoing

● Workshop on Revision of BSS in Qatar 20 – 22nd January 2009

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What’s about Occupational Exposure ?Structure (para. 3.62 – 3.106)

3. PLANNED EXPOSURESITUATIONS

Scope

Generic requirements

Occupational exposure

Public exposure

Medical exposure

-Scope Employers/Registrants/Licensees-Responsibilities Workers Cooperation between E,R or L

Areas (CA,SA, WP) Individual monitoring-Application of the system Exposure records for Protection and Safety Workers Health surveillance Education & Training PPE

Special compensatory arrangements-Conditions of service Female workers Alternative employment Conditions for young persons

-Specific situations Crew in space based activities

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What’s about Occupational Exposure ?

Scope• The requirements for occupational exposure in planned

exposure situations given in paras 3.62 to 3.106 apply to occupational exposure due to a practice or source within a practice, as referred to in paras 3.1–3.3, or due to the performance of remedial work in an existing exposure situation, as referred to in Section 5. In the case of exposure to natural sources, such requirements apply, as appropriate, only to the occupational exposures specified in para. 3.4(a), (c) and (d).

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What’s about Occupational Exposure ?Changes

• See “Scope”

• 3.77

• 3.98

• 3.101

• 3.104

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Para 3.77

• {I.29} Employers, registrants and licensees shall minimize the need to rely on administrative controls and personal protective equipment for achieving protection and safety by maximizing the provision of well engineered controls and satisfactory working conditions, in accordance with the following hierarchy of prevention principles:

• Engineered controls,• Administrative controls,• Personal protective equipment.

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Para 3.98

Education and training• {I.27 (a) (c) (d)} Employers, in cooperation with

registrants and licensees, shall:• (a) Provide to all workers adequate information on the

health risks due to their occupational exposure, whether normal exposure or potential exposure, adequate instruction and training on protection and safety and adequate information on the significance for protection and safety of their actions;

• (b) Provide appropriate information, instruction and training to those workers who could be affected by or involved in the response to an emergency;

• (c) Keep records of the training provided to individual workers.

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Para 3.101

• {I.27 (b)} Employers, in cooperation with registrants and licensees, shall provide to relevant female workers, such as those who are liable to enter controlled or supervised areas or who may undertake emergency duties, appropriate information on:

• (a) The risk to the embryo or foetus due to exposure of a pregnant woman;

• (b) The importance for a female worker of notifying her employer as soon as she suspects that she is pregnant [1];

• (c) The risk to an infant ingesting radioactive substances by breast feeding [1] Notification of pregnancy cannot be a requirement on a female worker in terms of these Standards, but it is something that she should do so that her working conditions may be modified accordingly.

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Para 104

Conditions for young persons• {I.19} No person under the age of 16

years shall be subjected to occupational exposure

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Schedule II DOSE LIMITS FOR PLANNED EXPOSURE SITUATIONS

II-1.For occupational exposure of workers over the age of 18 years, the dose limits are:

(a) An effective dose of 20 mSv per year averaged over five consecutive years;(b) An effective dose of 50 mSv in any single year;(c) An equivalent dose to the lens of the eye of 150 mSv in a year; (d) An equivalent dose to the extremities (hands and feet) or the skin [1] of 500

mSv in a year.

[1] The start of the averaging period shall be coincident with the first day of the relevant annual period after the date of entry into force of these Standards, with no retroactive averaging.

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Schedule II DOSE LIMITS FOR PLANNED EXPOSURE SITUATIONS

II-2. For occupational exposure of apprentices of 16 to 18 years of age who are training for employment involving exposure to radiation and of students of age 16 to 18 who are required to use sources in the course of their studies, the dose limits are:

(a) An effective dose of 6 mSv in a year;(b) An equivalent dose to the lens of the eye of 50 mSv in a year; (c) An equivalent dose to the extremities or the skin [2] of 150 mSv in a year.

[2] The equivalent dose limits for the skin apply to the average dose over 1 cm2 of the most highly irradiated area of the skin. Skin dose also contributes to the effective dose, this contribution being the average dose to the entire skin multiplied by the tissue weighting factor for the skin.

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Since June 2008 …

• More than 1200 comments have been transmitted to the IAEA*

• Mainly editorial issues

• Some key issues to be addressed by thenext RASSC/WASSC meeting (…this week !)

* Very relevant comments/proposals provided from ISOE BSS-WG through NEA channel

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Thank you for your attentionThank you for your attention

IAEA International Atomic Energy Agency Revision of the International Basic Safety Standards - BSS...

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