---
title: EPD blog | Standards and PCRs
description: Standards and PCRs |
---

[Skip to content](https://gccaepd.org/blog/tag/standards-and-pcrs#main-content)

[![GCCA](https://gccaepd.org/hubfs/GCCA%20logos/GCCA_RGB_blue.svg)](https://gccaepd.org/)

[Home](https://gccaepd.org/) [EPD Tool](https://gccaepd.org/tool) [Version 6](https://gccaepd.org/version-6) [Verification](https://gccaepd.org/verification) [Pricing](https://gccaepd.org/pricing) [Learn](https://gccaepd.org/learn) 

[Get a demo](https://gccaepd.org/get-a-demo)

EPD blog

# News and insights

Product updates, release notes and briefings on EPDs, low carbon ratings and whole-life carbon.

Search the blog

- There are no suggestions because the search field is empty.

[All posts](https://gccaepd.org/blog) [Tool updates](https://gccaepd.org/blog/tag/tool-updates) [Recarbonation](https://gccaepd.org/blog/tag/recarbonation) [Standards and PCRs](https://gccaepd.org/blog/tag/standards-and-pcrs) [Verification and publishing](https://gccaepd.org/blog/tag/verification-and-publishing) [Low carbon cement and concrete](https://gccaepd.org/blog/tag/low-carbon-cement-and-concrete) [Whole-life carbon](https://gccaepd.org/blog/tag/whole-life-carbon)

## Standards and PCRs

[![Electricity transmission tower against a blue sky](https://images.pexels.com/photos/7574218/pexels-photo-7574218.jpeg?auto=compress&cs=tinysrgb&w=1600)](https://gccaepd.org/blog/choosing-the-right-electricity-mix-for-your-epd)

Standards and PCRs

### [Choosing the Right Electricity Mix for Your EPD](https://gccaepd.org/blog/choosing-the-right-electricity-mix-for-your-epd)

Default, national and site-specific electricity mixes in the GCCA EPD Tool, and how market-based and location-based results work under PCR 2019:14.

October 8, 2026

[![Construction worker guiding a concrete pump hose on site](https://images.pexels.com/photos/585419/pexels-photo-585419.jpeg?auto=compress&cs=tinysrgb&w=1600)](https://gccaepd.org/blog/a5-and-b1-for-ready-mixed-concrete-what-to-do-when-you-don-t-know-the-final-use)

Standards and PCRs · Recarbonation

### [A5 and B1 for Ready-Mixed Concrete: What to Do When You Don't Know the Final Use](https://gccaepd.org/blog/a5-and-b1-for-ready-mixed-concrete-what-to-do-when-you-don-t-know-the-final-use)

How the GCCA EPD Tool handles construction (A5) and carbonation in use (B1) for ready-mixed concrete when site data and final use are unknown.

September 18, 2026

## Get new articles by email

Release notes, guidance and briefings on EPDs for cement and concrete.

[![GCCA](https://gccaepd.org/hubfs/GCCA%20logos/GCCA_RGB_blue.svg)](https://gccaepd.org/)

[EPD Tool](https://gccaepd.org/tool) [Version 6](https://gccaepd.org/version-6) [Verification](https://gccaepd.org/verification) [Pricing](https://gccaepd.org/pricing) [Learn](https://gccaepd.org/learn) [Blog](https://gccaepd.org/blog) [Documentation](https://gccaepd.org/epd-tool-documentation) [Client login](https://tool.gccaepd.org)

© 2026 Global Cement and Concrete Association