Letter

Letter is a message directed to a specific person or address and recorded in or on a tangible object, subject to the following:
(1) Tangible objects used for letters include, but are not limited to, paper (including paper in sheet or card form), recording disks, and magnetic tapes. Tangible objects used for letters do not include (i) objects the material or shape and design of which make them valuable or useful for purposes other than as media for long-distance communications, unless they are actually used as media for personal and business correspondence, and (ii) outsized, rigid objects not capable of enclosure in envelopes, sacks, boxes or other containers commonly used to transmit letters or packets of letters.
(2) Message means any information or intelligence that can be recorded as described in paragraph (a)(4) of this section.
(3) A message is directed to a “specific person or address” when, for example, it, or the container in which it is carried, singly or with other messages, identical or different, is marked for delivery to a specific person or place, or is delivered to a specific person or place in accordance with a selective delivery plan. Selective delivery plans include delivery to particular persons or addresses by use of detached address labels or cards; address lists; memorized groups of addresses; or “piggy-backed” delivery with addressed articles of merchandise, publications, or other items. Selective delivery plans do not include distributions of materials without written addresses to passersby on a particular street corner, or to all residents or randomly selected residents of an area. A message bearing the name or address of a specific person or place is a letter even if it is intended by the sender to be read or otherwise used by some person or persons other than or in addition to the addressee.
(4) Methods by which messages are recorded on tangible objects include, but are not limited to, the use of written or printed characters, drawing, holes, or orientations of magnetic particles in a manner having a predetermined significance.
(5) Whether a tangible object bears a message is to be determined on an objective basis without regard to the intended or actual use made of the object sent.
(6) Identical messages directed to more than one specific person or address or separately directed to the same person or address constitute separate letters.
(7) The following are not letters within the meaning of these regulations: 1

Source

39 CFR § 310.1


Scoping language

None
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