Standards Under Public Review

This draft of BSR/AHRI Standard 540-202x (SI/I-P), Performance Rating of Positive Displacement Refrigerant Compressors and Condensing Units is open for public review December 5, 2025 through January 19, 2026.

The purpose of this public review is to solicit technical comments from stakeholders.

Please submit your comments regarding the draft. Reviewers should submit their comments using the public review comment form, which requires both identification of the problem and a recommended solution. Reviewers should submit the form to AHRI_Standards@ahrinet.org.