BARCODE
A series of vertical bars and half bars that represents the correct zip code information for the delivery address on a mailpiece. CASS
A service offered to mailers that improves the accuracy of delivery point codes, zip +4 codes and carrier route information on mailpieces. DSCF (destination sectional center facility) Rate
A discount/rate available to Periodicals and Standard mail A that is properly prepared and entered by the mailer at the (SCF) that serves the delivery address on the mail (for standard mail) or in its service area (for Periodicals). FCM (First Class Mail)
A class of mail that includes all matter wholly or partly in writing or typewriting, all actual and personal correspondence, all bills and statements of account, and all matter sealed or otherwise closed against inspection. FIM (facing identification mark)
A series of vertical bars used by automated postal equipment to identify, orient, and separate business and courtesy reply mail. FIMs are required in the upper right corner of business reply mail. INDICIA
Imprinted designation on mail that denotes postage payment (e.g. permit imprint). MINIMUM SIZE REQUIREMENT
At least 5 inches long, At least 3 1/2 inches high, At least .007 inch thick. REPLY ENVELOPES
There are 3 types of reply envelopes: | 
