Policy regarding the mailing of magnets in enveloped letter-size pieces or affixed to letter-size, card-type pieces at machinable or nonmachinable prices was first addressed in Postal Bulletin 22083 (8-22-02, page 16). In Postal Bulletin 22221 (12-6-07, page 5), the Postal Service™ updated the policy regarding mailing magnets in enveloped letter-size pieces or affixed to letter-size, card-type pieces to allow them at automation prices.
As a result of working with the mailing industry, the Postal Service will publish new Customer Support Ruling (CSR), PS-351, Mailing Letter-Size Mailpieces with Magnets at Automation Prices, which will address the specifications for including magnets in enveloped letter-size pieces or affixed to letter-size, card-type pieces and receiving the applicable automation prices without requirements for testing.
CSR PS-351 will provide mailers with greater flexibility in designing enveloped letter-size pieces and letter-size, card-type pieces while increasing customers’ ease-of-use. Previously approved mailpieces with enclosed or affixed magnets are still valid if the mailpiece design has not changed since the approval. Customers may seek approval for automation prices for mailpieces with designs that differ from the guidelines in CSR PS-351 by contacting their local manager, Business Mail Entry. Managers receiving such requests must coordinate analysis and testing with the Pricing and Classification Service Center.
Policy regarding magnets enclosed in flat-sized mailpieces will remain as stated in Postal Bulletin 22221 (12-6-07, page 5). The Postal Service will publish CSR PS-351 in the next online update of Postal Explorer®, which is available at pe.usps.com.
— Product Classification, Marketing, 8-2-18
