Postal Explorer > IMM Issue 35 - International Mail Manual > 2 Conditions for Mailing > 270 Free Matter for the Blind or Other PhysicallyHandicapped Persons > 276 Customs Forms Required
A fully completed PS Form 2976 or 2976-A, depending on value, must be affixed to each item. The known mailer exemption in IMM 123.62 does not apply to free matter for the blind or other physically handicapped persons.