The following items are subject to comment: 1.) Proposed changes to Clause 5.2.1.2 to clarify flammability rating requirements for Mexico. 2.) Proposed changes to Clauses 7.3.1, 7.12.3, 7.16.1, and Table 19 to provide alternative marking requirements for Mexico to establish a standardized means of identifying fittings in the U.S., Canada, and Mexico. 3.) Proposed editorial changes to Clauses 2.2, 5.7.1.11, 5.8.1.1, 5.8.1.2, 7.3, 8.4.2, 8.12, 8.30.2.1, 8.36.3, and 8.36.4.