300
Commercial Mail Flats
Design Standards
301 Physical Standards
302 Elements on the Face of a Mailpiece
330 First-Class Mail
333 Prices and Eligibility
334 Postage Payment and Documentation
335 Mail Preparation
336 Enter and Deposit
340 Standard Mail
343 Prices and Eligibility
344 Postage Payment and Documentation
345 Mail Preparation
346 Enter and Deposit
360 Bound Printed Matter
363 Prices and Eligibility
364 Postage Payment and Documentation
365 Mail Preparation
366 Enter and Deposit
370 Media Mail
373 Prices and Eligibility
374 Postage Payment and Documentation
375 Mail Preparation
376 Enter and Deposit
380 Library Mail
383 Prices and Eligibility
384 Postage Payment and Documentation
385 Mail Preparation
386 Enter and Deposit
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