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Standard 181A, Edition 4

Standard for Closure Systems for Use With Rigid Air Ducts

UL CSDS Proposal
Standard 181A, Edition 4 Edition Date: February 03, 2017
Summary of Topics b0181a_4_20170203_sum.html

Subject 181A

Bulletin Dated: February 3, 2017


The following is being proposed:

1. Reaffirmation and Continuance of the Fourth Edition of the Standard for Closure Systems for Use with Rigid Air Ducts , UL 181A, as an American National Standard

Back to Standard 181A, Edition 4

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