26 C.F.R. § 31.3121(l)-1 Agreements entered into by domestic corporations with respect to foreign subsidiaries.
Title 26 - Internal Revenue
For provisions relating to the extension of the Federal old-age, survivors, and disability insurance system established by title II of the Social Security Act to certain services performed outside the United States by citizens of the United States in the employ of a foreign subsidiary of a domestic corporation, see the Regulations Relating to Contract Coverage of Employees of Foreign Subsidiaries (part 36 of this chapter).
Title 26: Internal Revenue
PART 31—EMPLOYMENT TAXES AND COLLECTION OF INCOME TAX AT SOURCE
Subpart B—Federal Insurance Contributions Act (Chapter 21, Internal Revenue Code of 1954)
General Provisions
§ 31.3121(l)-1 Agreements entered into by domestic corporations with respect to foreign subsidiaries.