234 Suffixes

234.1 Abbreviations

The suffix of the address should conform to the standard suffix abbreviations listed in the ZIP+4 file (see Appendix C).

234.2 Two Suffixes

If an address has two consecutive words that appear on the suffix table (Appendix C), abbreviate the second of the two words according to the suffix table and place it in the suffix field. The first of the two words is part of the street name. Spell it out on the mailpiece in its entirety after the street name.