ANSI/NAAMM Pending Standards

The following ANSI/NAAMM standards are currently being considered for revision or have a revision in progress:

The following ANSI/NAAMM standards under revision or proposed for reaffirmation are available for public comment:


MBG 531 Public Review Documents:

MBG 531-XX: Metal Bar Grating Manual

Letter Ballot MBG 531-XX

ANSI MBG 531 Consensus Committee Membership

Summary of ANSI Essential Requirements 2016



If no standards are listed, none are currently open for public comment. Please check back periodically. Parties interested in public comment should contact the NAAMM Technical Consultant: