Boiler Directive: Exemption from Registration Requirements for Category A, B, C and G Category Fittings

12 July 2013

Reference #:  D-BP 2013-03

This directive supersedes Directive D-B6 070402 3 issued on April 3, 2007 and is being issued to clarify the requirements for exemption of Category A, B, C, and G fittings from registration.

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