---
kind: "unit"
title: "10"
title_heading: "Energy"
key: "chI/part35"
level: "part"
label: "Part 35"
heading: "Medical Use of Byproduct Material"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/10/chI-part35"
sections_count: 111
---

# Part 35 — Medical Use of Byproduct Material

Title 10 C.F.R. — Energy › Chapter I — Nuclear Regulatory Commission

## Contents

- [Subpart A — General Information](/cfr/10/chI-part35-subpartA.md)
- [Subpart B — General Administrative Requirements](/cfr/10/chI-part35-subpartB.md)
- [Subpart C — General Technical Requirements](/cfr/10/chI-part35-subpartC.md)
- [Subpart D — Unsealed Byproduct Material—Written Directive Not Required](/cfr/10/chI-part35-subpartD.md)
- [Subpart E — Unsealed Byproduct Material—Written Directive Required](/cfr/10/chI-part35-subpartE.md)
- [Subpart F — Manual Brachytherapy](/cfr/10/chI-part35-subpartF.md)
- [Subpart G — Sealed Sources for Diagnosis](/cfr/10/chI-part35-subpartG.md)
- [Subpart H — Photon Emitting Remote Afterloader Units, Teletherapy Units, and Gamma Stereotactic Radiosurgery Units](/cfr/10/chI-part35-subpartH.md)
- [Subpart I-J — Subparts I-J [Reserved]](/cfr/10/chI-part35-subpartI-J.md)
- [Subpart K — Other Medical Uses of Byproduct Material or Radiation From Byproduct Material](/cfr/10/chI-part35-subpartK.md)
- [Subpart L — Records](/cfr/10/chI-part35-subpartL.md)
- [Subpart M — Reports](/cfr/10/chI-part35-subpartM.md)
- [Subpart N — Enforcement](/cfr/10/chI-part35-subpartN.md)