SA

Sugar Agency

SAB

Science Advisory Board

SAPFT

Special Adviser to President on Foreign Trade

SCS

Soil Conservation Service

SEC

Securities and Exchange Commission

SES

Soil Erosion Service

SHD

Subsistence Homesteads Division

SLIC

Savings and Loan Insurance Corporation

SLRB

Steel Labor Relations Board, State Labor Relations Board

SMA

Surplus Marketing Administration

SPAB

Supply Priorities and Allocations Board

SSB

Social Security Board

SSS

Selective Service System

SWPC

Smaller War Plants Corporation