The Declare Manufacturer’s Guide is updated quarterly to reflect new Clarifications and Exceptions resulting from Dialogue posts, add clarifying text, tables or graphics, and make other amendments or additions that improve the clarity and content of the Guide. Quarterly updates will occur in January, April, July, and October of each year, at which time this Manufacturer’s Guide will be revised and the cover page time stamped with the latest revision date. See Previous Versions of the Declare Manufacturer’s Guide in the Table of Contents for a link to download PDFs of previous versions.

At each update, a summary of the substantive changes is provided here. This summary lists, by Section heading, the April 2021 updates to the Declare Manufacturer’s Guide originally published between October and December of 2020. Corrections made throughout for grammar, punctuation, nomenclature, typos, and links are not included.

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