---
kind: "unit"
title: "30"
title_heading: "Mineral Resources"
key: "chI/subchB/part7/subpartD"
level: "subpart"
label: "Subpart D"
heading: "Multiple-Shot Blasting Units"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/30/chI-subchB-part7-subpartD"
sections_count: 12
---

# Subpart D — Multiple-Shot Blasting Units

Title 30 C.F.R. — Mineral Resources › Chapter I — Mine Safety and Health Administration, Department of Labor › Subchapter B — Testing, Evaluation, and Approval of Mining Products › Part 7 — Testing by Applicant or Third Party

## Sections

- [§7.61. Purpose and effective date.](/cfr/30/7.61.md)
- [§7.62. Definitions.](/cfr/30/7.62.md)
- [§7.63. Application requirements.](/cfr/30/7.63.md)
- [§7.64. Technical requirements.](/cfr/30/7.64.md)
- [§7.65. Critical characteristics.](/cfr/30/7.65.md)
- [§7.66. Output energy test.](/cfr/30/7.66.md)
- [§7.67. Construction test.](/cfr/30/7.67.md)
- [§7.68. Firing line terminals test.](/cfr/30/7.68.md)
- [§7.69. Approval marking.](/cfr/30/7.69.md)
- [§7.70. Post-approval product audit.](/cfr/30/7.70.md)
- [§7.71. Approval checklist.](/cfr/30/7.71.md)
- [§7.72. New technology.](/cfr/30/7.72.md)