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CSA Z1006-2023
Management of work in confined spaces
Preface This is the third edition of CSA Z1006, Management of work in confined spaces. It supersedes the previous editions published in 2016 and 2010. Changes in this edition include a) improvement of the flow and readability of the document with the inclusion of additional flowcharts and tables and restructuring of content and clauses; b) harmonization of this Standard with CSA Z45001, CAN/CSA-Z1001, and CAN/CSA-Z1002; c) elaboration on the information regarding workspace design and modification; and d) elaboration on the information regarding monitoring confined space remotely through the use of technology. CSA Group acknowledges that the development of this Standard was made possible, in part, by the financial support of federal, provincial, and territorial occupational health and safety government agencies. This Standard was prepared by the Technical Committee on Management of Confined Space Entry, under the jurisdiction of the Strategic Steering Committee on Occupational Health and Safety, and has been formally approved by the Technical Committee. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope 1.1 General This Standard is designed to be used with related occupational or technical standards. It is intended to be referenced by other standards as the primary set of requirements for health and safety management of work in confined spaces. This Standard is designed for voluntary application in Canadian workplaces. However, the principles established in this Standard are based on best practices recognized internationally. As such, they can be applied to any workplace. Note: At the time of publication, confined space legislation differs from jurisdiction to jurisdiction in Canada. It is the user’s responsibility to determine how applicable legislative requirements relate to this Standard. 1.2 Applications This Standard specifies requirements for a) establishing and maintaining a confined space management program in accordance with OHSMS principles; b) the roles and responsibilities of management, the entry team, and the emergency response team; c) identification and designation of confined spaces; d) design and engineering of confined spaces; e) hazard identification and risk assessment relating to work in confined spaces; f) management and control of hazards and risks associated with work in confined spaces; g) personal protective equipment (PPE) and other equipment used for work in confined spaces; h) general safety procedures for confined spaces; i) remote monitoring; j) training for work in confined spaces; k) determining worker capability of performing assigned duties within confined spaces; l) emergency plans for rescuing workers in confined spaces; m) management of external service providers; and n) documentation. 1.3 Exclusions This Standard does not address safety management of a) enclosures or structures designed and constructed for continuous human occupancy; or b) underwater enclosures. Note: For underwater enclosures, see the requirements for penetration diving specified in CSA Z275.2. 1.4 Terminology In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. 1.5 Units of measure The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
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