Mailing Standards of the United States Postal Service, Domestic Mail Manual(DMM®)section 201.3.2 states that automation letter- or postcard-priced mailpieces must be “made of paper.” Mailers who have established that their laminated card-type letters and postcards are made of paper and not plastic have been eligible to mail those items at automation letter or postcard prices. Those mailers were grandfathered in as stated in the April 6, 2009, Federal Register notice (74 FR 15380-15384).
The Postal Service™ will publish a new Customer Support Ruling (CSR), PS-350, Laminated Card-Type Letter and Postcard, which will include a matrix of requirements that allow laminated card-type letters or postcards that meet size specifications to receive the applicable automation prices without any testing requirements.