Superintendent of Documents Classification System

Agency	Code	Agency	Code
Agriculture Department	A	Arms Control and Disarmament Agency	AC
National Archives and Records Administration	AE	Commerce Department	C
Federal Communications Commission	CC	Civil Rights Commission	CR
Defense Department	D	Energy Department	E
Education Department	ED	Environmental Protection Agency	EP
Fine Arts Commission	FA	Fine Arts Commission	FCA
Federal Emergency Management Agency	FEM	Federal Housing Financing Board	FHF
Federal Maritime Commission	FMC	Federal Reserve System Board of Governors	FR
Federal Trade Commission	FT	Foreign-Trade Zones Board	FTZ
General Accounting Office	GA	Government Printing Office	GP
General Services Administration	GS	Health and Human Services Department	HE
Housing and Urban Development Department	HH	Interior Department	I
U.S. Information Agency	IA	Interstate Commerce Commission	IC
International Trade Commission	ITC	Justice Department	J
Judiciary	JU	Labor Department	L
Library of Congress	LC	National Labor Relations Board	LR
Merit Systems Protection Board	MS	National Aeronautics and Space Administration	NAS
National Capital Planning Commission	NC	National Credit Union Administration	NCU
National Foundation on the Arts and the Humanities	NF	National Mediation Board	NMB
National Science Foundation	NS	Overseas Private Investment Corporation	OP
United States Postal Service	P	Peace Corps	PE
Personnel Management Office	PM	President of the United States	PR
Executive Office of the President	PREX	Vice President of the United States	PRVP
Railroad Retirement Board"	RR	State Department	S
Small Business Administration	SBA	Securities and Exchange Commission	SE
Smithsonian Institution	SI	Social Security Administration	SSA
Treasury Department	T	Transportation Department"	TD
Veterans Affairs Department	VA	Congress	X
Congressional Publications	Y