{"id":107,"date":"2021-12-10T16:23:28","date_gmt":"2021-12-10T16:23:28","guid":{"rendered":"https:\/\/packagepatrols.com\/?p=107"},"modified":"2022-08-25T19:20:03","modified_gmt":"2022-08-25T19:20:03","slug":"usps-priority-mail-flat-rate-envelope-rulesa-must-read","status":"publish","type":"post","link":"https:\/\/packagepatrols.com\/index.php\/usps-ups\/usps-priority-mail-flat-rate-envelope-rulesa-must-read\/","title":{"rendered":"USPS Priority Mail Flat Rate Envelope Rules(A Must-Read)"},"content":{"rendered":"

We all need to mail one thing or another from time to time. Mail service has become quite advanced in recent years introducing a variety of different packaging options, including the flat rate envelope one.<\/p>\n

In order to utilize the USPS Priority Mail Flat Rate service, it is important to follow their rules. The basic rule is that whatever you are shipping must fit into the given envelopes, without those envelopes being modified in any way. <\/strong>Tape cannot be used to hold the envelope shut. <\/strong>It should not be overly bulky. <\/strong>It must be under 70 lb.<\/strong><\/p>\n

We will tell you all about this type of mailing and answer a few of the most common questions.<\/p>\n

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What Are The Priority Mail Flat Envelope Rules?<\/strong><\/h2>\n

There are a few rules for using these envelopes, as follow:<\/p>\n