yourstate.us
21 CFR 660.53

§ 660.53 Controls for serological procedures.

United States · 21 CFR — Food and Drugs · Status: effective

Get this as JSONEmbed this
Cite this
Citation
21 CFR 660.53, § 660.53 Controls for serological procedures, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/88570
Permanent ID
ys:prov:88570@1
SHA-256
e61e73637cb79d12dbafca59000ea264b4d94055a6d232eee965c7dbbabb54d6

The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.

Full text

Red blood cells sensitized with complement shall be tested with appropriate positive and negative control antisera. All tests shall be performed in accordance with serological testing procedures approved by the Director, Center for Biologics Evaluation and Research.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.