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MILIPAC

USPS switching to poly plastic for three envelope types

November 5, 2025 by 21cpw

Tyvek envelopes will be available while the current supply lasts. The changeover is expected to be completed in December.

Categories Clerk Business, General Union Business Tags envelope, industry alert, MILIPAC, packaging materials, poly plastic, Priority Mail EP14, Priority Mail Express EP13C, Priority Mail mili-pac, recycling, Tyvek, Tyvek envelopes Leave a comment

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