NAICS UNIVERSITY · Free research for insurance agents

Crushed and Broken Granite Mining and Quarrying

NAICS 212313 · United States · 2022 edition

This U.S. industry comprises (1) establishments primarily engaged in developing the mine site, and/or mining or quarrying crushed and broken granite (including related rocks, such as gneiss, syenite (except nepheline), and diorite) and (2) preparation plants primarily engaged in beneficiating granite (e.g., grinding or pulverizing).

UW takeaway · AI logic + saved research

Start the review with workers' compensation.

For Crushed and Broken Granite Mining and Quarrying, the saved research highlights workers' compensation, blasting and explosion liability, heavy equipment liability. Confirm how these arise in the actual operation, what controls are used and whether additional services change the proposed coverage.

Questions to ask

  1. Is blasting used on-site, and if so, what is the proximity to the nearest occupied structure or public road?
  2. What heavy equipment is operated, and which units travel on public roads versus remaining on-site only?
  3. What is the current MSHA inspection history and any outstanding citations?
  4. Are there documented dust monitoring and silica exposure control programs in place?
  5. What is the prior five-year loss history across workers' comp, GL, and auto?
  6. Are there any active or pending environmental or regulatory actions related to the site?
  7. For Crushed and Broken Granite Mining and Quarrying, what should the underwriter know about active drill-and-blast operations within close proximity to residential structures, utilities, or public roads?
  8. For Crushed and Broken Granite Mining and Quarrying, what should the underwriter know about prior blasting-related property damage or bodily injury claims?

Activities described by this code

Other activities to examine

Census classification reference

For educational purposes only. AI-generated insurance research and automated logic can contain errors. Independently verify classification and coverage decisions.

Compare another operation

Insurance operations research — draft

Granite quarrying involves site development, drilling, and blasting or mechanical extraction of granite and related hard rock (such as gneiss, syenite, and diorite), followed by crushing, screening, and sometimes grinding or pulverizing at on-site preparation plants. Output typically includes crushed stone, aggregate, rip-rap, and dimensional or decorative granite products sold to construction, landscaping, and industrial customers. Heavy equipment — drills, loaders, haul trucks, crushers, and conveyors — operates continuously on rough terrain.

Questions to investigate

This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.

Classification workflow · Multiple-operation workflow