To work in

to insert, introduce, mingle, or interweave by labor or skill.

See also: Work

References in periodicals archive ?
The attempt to document his charges would show that the Immigration and Naturalization Service is not up to the task of making sure that new employees are legally authorized to work in this country.
Accordingly, the administration is merging INS and Social Security system databases to create a worker registry - a list of all people who are authorized to work in this country.
Each one of them is required to fill out an INS I-9 form, attesting to his eligibility to work in the United States.