Environmental Product Declarations (EPD)
Page Last Updated: September 9, 2021
The purpose of the Caltrans Environmental Product Declaration (EPD) Implementation Project is to collect EPDs for materials incorporated into construction projects in order to quantify the Global Warming Potential (GWP) emissions in the manufacturing of those materials for our transportation system.
- Caltrans EPD Implementation Project Information (PDF)
Buy Clean California
The Buy Clean California Act, originally signed into law on October 15, 2017 mandates collection of EPDs for eligible materials (carbon steel rebar, structural steel, flat glass, and mineral wool board insulation).
- Department Exemptions to Environmental Product Declarations in Public Contract Code § 3503 (PDF)
- Standard Special Provision 6-1.06_A4-16-21 (PDF)
- Construction Manual 3-606 Buy Clean California Act
For more information on the Buy Clean California Act, please visit the CA Department of General Services.
Pilot Project Updates
Five major building materials put into service by Caltrans have been identified to include Concrete, Carbon Steel Rebar, Structural Steel (SS), Asphalt, and Aggregate and will be the initial set of materials to which EPDs will be collected on pilot projects and used for determining baseline environmental impacts.
- Latest Non-Standard Special Provision (NSSP) for Pilot Projects 6-1.06_N03-05-19_2019
Current Pilot Projects Requiring EPDs (updated 03/27/2020, additional projects to be added)
|Project EA||Contract Award Approval||Eligible Materials per Buy Clean California Act||Concrete||Asphalt||Aggregate|
|Rebar||Structural Steel||Flat Glass||Mineral Wool Board Insulation|
|02-1H110||December 31, 2019||✔||✔||✔|
|02-4G500||October 24, 2019||✔||✔|
|05-1F740||May 1, 2019||✔||✔||✔||✔|
|07-31040||November 4, 2019
|08-0K121||January 22, 2020||✔
|08-1F690||October 24, 2019
|12-0N490||January 22, 2020||✔||✔||✔|
✔ Indicates pilot project has anticipated quantity of material meeting threshold to require EPD as set forth in NSSP
Product Category Rules
Use the product category rule in effect on the date of bid opening unless otherwise authorized. Where a product category rule for material or product has expired without replacement as of the bid opening date, no environmental product declaration is required for that particular material or product.
Where separate bid item exists (Pilot Projects only): Submit a schedule of values for material and product environmental product declarations within 15 days after Contract approval.
|Material or Product||Applicable PCR||Range of Applicability|
|Carbon Steel Rebar and Structural Steel||
North American Product Category Rule for Designated Steel Construction Products (Expired)
May 5, 2015 / May 5, 2020
August 26, 2020 / August 2025
September 30, 2013 / September 30, 2025
March 31, 2014 / March 31, 2020
|Mineral Wool Board Insulation||Product Category Rule (PCR) Guidance for Building-Related Products and Services Part B: Building Envelope Thermal Insulation EPD Requirements||April 11, 2018 / April 11, 2023|
|Aggregate||ASTM International Product Category Rules for Preparing an Environmental Product Declaration for Construction Aggregates: Natural Aggregate, Crushed Concrete, and Iron/Steel Furnace Slag||January 2017 / January 2022|
|Asphalt Concrete||National Asphalt Pavement Association Product Category Rules for Asphalt Mixtures(PDF)||January 31, 2017 / January 2022|
|Concrete||Product Category Rule for Environmental Product Declarations, PCR for Concrete(PDF)||April 2019 / February 22, 2024|
The current PCR for Concrete has replaced Version 1.1 dated December 2013, published by Carbon Leadership Forum.
Program Operator Consortium (POC) develops PCRs, reviews and verifies EPDs, reports Life Cycle Assessment (LCA), and publishes customized Type III environmental declaration formats in accordance with the International Standard ISO 14025.