http://www.buylaserpointer.com/ed/201508/cat-chasing-laser-pointer.html
Whenever users are in need of the best line alignment result, the adoption of 532nm green cross line Cat Chasing Laser Pointer module is just able to generate the highest level of line straightness and brightness at all kinds of working occasions. Employed by the most advanced 532nm green DPSS laser tech, this advanced green laser module is always bringing users the most satisfied vertical and horizontal green lines with the lowest time consumption and lowest power consumption.
http://www.buylaserpointer.com/green-laser/p-7.html
532nm green cross line laser module is a very special cross line measuring tool, its operation always has no limitation of working distance, height, or other surrounding working environment. Whatever kind of industrial cross line generating working fields, it is always able to project bright and visible enough green cross line with accurate 90 degrees.
http://www.buylaserpointer.com/green-laser/p-10.html

Laser Pointer owners have the fundamental responsibility to provide for the safe use of lasers within their facility and to implement safety programs to adequately control the hazards associated with laser use. In the United States, the accepted governing standards are the ANSI Z136 series, The Safe Use of Lasers.
http://www.buylaserpointer.com/green-laser/p-25.html
Outside of the United States, international standards such as IEC 60825 series, Safety of 50mw Green Laser Products, prevail. We recommend for laser owners to follow the governing standard in their country to assure regulatory compliance and to provide the necessary safety programs to protect their employees and property.
http://www.buylaserpointer.com/blue-laser/p-4.html
The Laser Institute of America is a professional society that promotes Blue Laser Pointer 10000mw safety and education by offering technical conferences, workshops, publications, and training to industrial, medical, research, and government communities. You can purchase the standards referenced above from their site.
Center for Devices and Radiological Health (CDRH) regulates firms who manufacture, repackage, re-label, and/or import lasers (and medical devices) sold in the United States. An overview of laws and regulations for radiation-emitting products is provided on the web site.