ok, it took a while to find, they have it buried in the website. I guess after taking a second look as long is it's double enveloped with the appropriate markings, it's cool. There is a lot more to read I just pasted some of the info.





Violations

This is a partial list of conduct that may violate 39 USC 3010 or 18 USC 1735:

a. The mailing of a sexually oriented advertisement in an envelope or other wrapper that does not bear the name and address of the sender and the legend "Sexually Oriented Ad," under 9.5.

b. The mailing directly or indirectly of a sexually oriented advertisement to a person whose name and address are on the list for more than 30 days.

c. The sale, loan, lease, or licensing of the use of the list or a copy thereof in whole or in part.

d. The use of the list or a copy of it in whole or in part for any purpose other than to ensure that no mailings of sexually oriented advertisements are made to persons on the list.
9.7 Reporting Unsolicited Advertisements
9.7.1 Submitting a Report

Anyone who wants to report receipt of an unsolicited sexually oriented advertisement after an addressee's name and address are on the list for more than 30 days should submit to any postmaster, or directly to the Prohibitory Order Processing Center manager, the entire mailpiece, including the envelope or other wrapper. The piece must have been opened by the addressee. When submitting the piece, the addressee must endorse the envelope or other wrapper and also the inside contents in substance as follows: "I received this mailpiece on [date]," and sign the statement. If received by the postmaster, the piece must be forwarded promptly to the Prohibitory Order Processing Center manager. The manager then forwards the piece to the appropriate Inspection Service Field Division Office.
9.7.2 Verifying Inclusion on List




Section 3010(a) authorizes and directs the USPS to provide a mark or notice that must be placed on the envelope or cover of any sexually oriented advertisement sent through the mail, with the sender's name and address. The following provisions implement this authority and direction:

a. Any person who mails or causes to be mailed any sexually oriented advertisement must place in the upper left corner of the exterior face of the mailpiece, whereon appear the address designation and postmarks, postage stamps, or indicia thereof, the sender's name and address. In the right portion below the postage stamp, or indicia thereof, and above the addressee designation, there must be placed "Sexually Oriented Ad." The words "Sexually Oriented Ad," however, need not be placed on the exterior envelope or cover of a mailpiece containing such an advertisement, if the contents of the mailpiece are enclosed in a sealed envelope or cover, inside the exterior envelope or cover, and the sealed envelope or cover bears conspicuously the words "Sexually Oriented Ad."

b. The name and address of the sender and the required legend, if it is placed on the exterior face of the mailpiece, must be printed in a type size no smaller than that used for any other word on the envelope or other cover, and never smaller than 12-point type. Such type must be no less conspicuous than the boldest type used to print other words on the exterior face of the mailpiece.

c. The contrast between the background and printing of the sender's name and address and the contrast between the background and the printing of the required notice must be no less than the contrast between the background and printing of any other word on the envelope or other wrapper.

d. A clear space no less than 1/4 inch wide must surround the sender's name and address and the required notice, separating each from any other matter on the same envelope or cover.