This consultation closes at 11:59 p.m. on:
October 24, 2025
Proposal summary
OPSS 1355 – Precast Concrete – Materials and Production is a newly developed specification which includes standard requirements for precast concrete. Other construction specifications for precast concrete components, such as OPSS 909 for girders and OPSS 912 for culverts, now refer to OPSS 1355 for the standard precast concrete requirements. As part of the specification publication process, Engineering Materials Office (EMO) Concrete Section is posting the draft specification for external stakeholders’ consultation prior to publication in November 2025.
Proposal details
The new specification covers the requirements for precast concrete – materials and production. It is accompanied by the Contract Administration and Inspection Specification (CAIS). We are consulting on the entirety of the OPSS and CAIS specifications.
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