20 CFR § 404.1211 - Interstate instrumentalities.

---
identifier: "/us/cfr/t20/s404.1211"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "20 CFR § 404.1211 - Interstate instrumentalities."
title_number: 20
title_name: "Employees' Benefits"
section_number: "404.1211"
section_name: "Interstate instrumentalities."
chapter_name: "SOCIAL SECURITY ADMINISTRATION"
part_number: "404"
part_name: "FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950-  )"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
cfr_part: "404"
---


# 404.1211 Interstate instrumentalities.

For Social Security coverage purposes under section 218 of the Act, interstate instrumentalities are treated, to the extent practicable, as States, that is:

(a) They must be legally authorized to enter into an agreement with the Commissioner;

(b) They are subject to the same rules that are applied to the States;

(c) They may divide retirement systems and cover only the positions of members who want coverage; and

(d) They may provide coverage for firefighters and police officers in positions under a retirement system.

[53 FR 32976, Aug. 29, 1988, as amended at 61 FR 38368, July 24, 1996; 62 FR 38451, July 18, 1997]