Us Postal Service Form 3817 - Web unless otherwise restricted by standards, extra service fees may be paid using precanceled stamps (except for. Web in addition to the correct postage, the mailer must pay the certificate of mailing fee for each article on ps form 3817 at a post.
Web unless otherwise restricted by standards, extra service fees may be paid using precanceled stamps (except for. Web in addition to the correct postage, the mailer must pay the certificate of mailing fee for each article on ps form 3817 at a post.