usps priority mail padded flat rate envelope size too thick?

'When sealing a Flat Rate Envelope or Flat Rate Box, the container flaps must be able to close within the normal folds.'

'Any amount of material (up to 70 pounds) may be mailed in a USPS-produced Priority Mail Hard copy at some postal stations although these hard copy versions are updated less frequently. These documents are available online (which is quite up to date), and are available in The regulations within these documents are definitive, and they provide for nationwide consistency The primary rules governing the mail are theĭomestic Mail Manual and the International Mail Manual. What the official postal regulations are, and outlines procedures you may use to communicateĪs a companion, see these letter fragments to appeal refusals of FREs. Since December, a number of postal stations have been improperly refusing to accept Flat RateĮnvelope mailings when they are 'too thick' or are 'poofy' or 'lumpy.'

Or contour, or weight up to 70 pounds for domestic use and 4 pounds for international use. Rule that one might stuff these envelopes with any mailable content, regardless of thickness, Flat Rate Priority Mail have been in use for a number of years.

Usps priority mail padded flat rate envelope size too thick?