21 CFR 872.1840
§ 872.1840 Dental x-ray position indicating device.
United States · 21 CFR — Food and Drugs · Status: effective
Cite this
- Citation
- 21 CFR 872.1840, § 872.1840 Dental x-ray position indicating device, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/90052
- Permanent ID
ys:prov:90052@1- SHA-256
073ff91f62c331204daadfc33d5868c81da61f021aa549effbb0936707cf27fe
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
(a) Identification. A dental x-ray position indicating device is a device, such as a collimator, cone, or aperture, that is used in dental radiographic examination. The device is intended to align the examination site with the x-ray beam and to restrict the dimensions of the dental x-ray field by limiting the size of the primary x-ray beam.
(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 872.9.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.