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By Discipline: > Construction > PS and E Approvals
- Construction
- PS and E Approvals
- Legislation
- 23 USC 109 Standards (2012)
- Regulation
- 23 CFR 635.309 Authorization (4/1/2013)
- Guidance
- Development and Review of Specifications (03/24/2010)
- Information
- 2014 FHWA National Review of State Cost Estimation Practice (February, 2015)
- Legislation
- PS and E Approvals