TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER f: HIGHWAYS
PART 532 MAILBOX TURNOUTS
SECTION 532.410 POSTAL REGULATIONS
Section 532.410 Postal Regulations
a) Postal regulations require that a mailbox be located, whenever possible so that the mail carrier's vehicle is off pavement when serving the box.
b) Postal regulations require that mounting posts be neat, of adequate strength and size, and that the bottom of the mailbox be 38 to 40 inches above street level. (See Illustration B and C)