ASM
Annual Survey of Manufacturers.

CFN
(Census File Number) A 10-digit number unique to a manufacturing plant or establishment.

COS
(Company Organization Survey) Solicits information annually from large companies in the economic censuses concerning changes in their organization. (Economic Planning and Coordination Division)

CSAQ
Computerized Self-Administered Questionaire.

EC
(Economic Census) Sometimes used to refer to the economic census, a collective term covering the Censuses of Construction, Minerals, Manufacturing, Minority and Women-Owned Businesses, Retail Trade, Service Industries, Transportation, and Wholesale Trade conducted by the Census Bureau every five years, in years ending in "2" and "7".

EIN
(Employer Identification Number) A unique number assigned by the Internal Revenue Service to every employer in the United States for the purposes of identification. Similar in purpose to the Social Security Number assigned to individuals.

EPCD
Designation for the (Economic Planning and Coordination Division), Bureau of the Census.

ESMPD
Designation for the (Economic Statistical Methods and Programming Division), Bureau of the Census.

SIC
(Standard Industrial Classification) A numerical code scheme previsously used for classifying industries and products. In January 1997 the SIC was replaced by the North American Industry Classification System (NAICS).

SQA
(Software Quality Assurance) A quality assurance program designed to test the accuracy of software programs being developed for specific programs or projects.

SSEL
Standard Statistical Establishment. A database that maintains information on companies operating in the United States.

SSN
Designation for (Social Security Number).

SU
(Single-unit Company) Companies in the economic censuses in which the establishment and the company are one and the same. See also MU (Multi-unit).