Amendment to OPSS 905, November 2024

TCP number

000-0281

Notice type

Standard

Applies to

SP - Special Provisions

No. specification

SP 109S62

Posted by

Structures Office

Notice stage

Proposal

Proposal posted

December 3, 2025

Comment period

December 3, 2025 - December 24, 2025 (21 days) Open

Last updated

December 3, 2025

This consultation closes at 11:59 p.m. on:
December 24, 2025

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Proposal summary

This Special Provision (SP) amending OPSS 905 has been developed to assist the industry in implementing welding practices that comply with MTO requirements.

Proposal details

This Special Provision (SP) amending OPSS 905 specifies the requirements for welding carbon steel reinforcement. The SP prohibits the use of tack welding and specifies the requirements of carbon steel rebar welding when the welding is approved by the Ministry. A clear definition of resistance welding and the submission requirements of resistance welding are also outlined. Overall, the SP reflects the Ministry’s commitment to enhancing quality and efficiency in MTO’s contracts.

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