30 CFR § 18.8 - Date for conducting investigation and tests.

---
identifier: "/us/cfr/t30/s18.8"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 18.8 - Date for conducting investigation and tests."
title_number: 30
title_name: "Mineral Resources"
section_number: "18.8"
section_name: "Date for conducting investigation and tests."
chapter_name: "MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR"
subchapter_number: "B"
subchapter_name: "TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS"
part_number: "18"
part_name: "ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 957, 961."
regulatory_source: "33 FR 4660, Mar. 19, 1968, unless otherwise noted."
cfr_part: "18"
---


# 18.8 Date for conducting investigation and tests.

The date of receipt of an application will determine the order of precedence for investigation and testing. If an electrical machine component or accessory fails to meet any of the requirements, it shall lose its order of precedence. If an application is submitted to resume investigation and testing after correction of the cause of failure, it will be treated as a new application and the order of precedence for investigation and testing will be so determined.