This revision to ANSI/UL 207 dated January 21, 2020 includes the following changes in requirements: – Revisions To Include Requirements To cover Refrigeration Fittings; 1.2, 3A.49, 5.7, 5.7.1, Section 10A, and Supplement SA – Changes to Include Refrigeration Line Sets; Sections 10B, 19A – 19C – Deletion of Limited-Charge Systems Requirements; 11.2, 11.4 – Addition of Nonmetallic materials Requirements; 4.9, 22.10.3 – Proposed Clarification To Marking Requirements; 22.4 – Remove Four Refrigerants from Table 11.1 – Editorial Corrections; Table 5.1, 12.1.2.1, 12.2.2, 12.2.3, 15.1, 22.1.5 – 22.1.9, and 23.1