Caution:
Internal Revenue Manual Part 3. Submission Processing · 2026-10-03 edition · updated 2026-10-04 · United States
ONLY when used as a direction.
N
Northeast, N.E.
NE
Northwest, N.W.
NW
Office
OFC
One fourth, One quarter
1/4
One half
1/2
Orchard
ORCH
Overpass
OPAS
Parkway(s)
PKWY
Passage
PSGE
Penthouse
PH
Pine(s)
PNE(S)
Place
PL
Plain(s)
PLN(S)
Plaza
PLZ
Point(s)
PT(S)
Port
PRT
Post Office Box, PO Box, P.O. Box, P.O. Drawer, POB, PO
PO BOX See IRM 3.41.276.12.7 (14) for instructions.
Prairie
PR
Private Mailbox
PMB
Radial
RADL
Ranch
RNCH
Rapid(s)
RPD(S)
Rest
RST
Ridge(s)
RDG(S)
River
RIV
Road(s)
RD(S)
Room
RM
Route, Rte., RT
RTE
Rural Route, Rural Delivery, R.D, RFD, R.F.D.
RR
Shoal(s)
SHL(S)
Shore(s)
SHR(S)
Skyway
SKWY
South, So., So
S
Southeast, S.E.
SE
Southwest, S.W.
SW
Space
SPC
Spring(s)
SPG(S)
Square(s)
SQ(S)
Station
STA
Stravenue
STRA
Stream
STRM
Street(s)
ST(S)
Suite
STE
Summit
SMT
Terrace, Terr
TER
Throughway
TRWY
Trace
TRCE
Track
TRAK
Trafficway
TRFY
Trail
TRL
Trailer
TRLR
Tunnel
TUNL
Turnpike
TPKE
Underpass
UPAS
Union(s)
UN(S)
Upper
UPPR
Valley(s)
VLY(S)
Viaduct
VIA
View(s)
VW(S)
Village(s)
VLG(S)
Ville
VL
Vista
VIS
Well(s)
WL(S)
West, We
W
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