Massachusetts State Seal An official website of the Commonwealth of Massachusetts Here's how you know

Official websites use .mass.gov

A .mass.gov website belongs to an official government organization in Massachusetts.

Secure websites use HTTPS

A lock icon or https:// means you've safely connected to the official website. Share sensitive information only on official, secure websites.

  • This page, 105 CMR 121.00: To control the radiation hazards of lasers, laser systems and optical fiber communication systems utilizing laser diode or light emitting diode sources, is   offered by
  • Trial Court Law Libraries
  • Massachusetts Court System
Regulation

Regulation  105 CMR 121.00: To control the radiation hazards of lasers, laser systems and optical fiber communication systems utilizing laser diode or light emitting diode sources

Date: 01/04/2008
Organization: Department of Public Health
Regulatory Authority: MGL c. 111, §§ 5I, 5M, 5N, 5O, 5P
Official Version: Purchase the official print version

105 CMR 121.000 applies to all persons who receive, possess, use, transfer, own, acquire, operate, maintain, repair or service a laser, laser system or optical fiber communication system utilizing laser diode or light emitting diode sources.

Download a PDF copy of the regulation below.

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.
Feedback