Standard classification for a laser pointer

Class I laser pointer:
No known skin exposure hazard exists and no fire hazard exists. The light is shielded from any possible viewing by a person and the laser pointer is interlocked to prevent the laser from being on when exposed.

Class II laser pointer:
Power of a laser pointer up to 1 milliwatt. The laser pointer is not considered an optically dangerous device as the eye reflex will prevent any ocular damage. Caution labels (yellow) should be placed on the laser pointer. No known skin exposure hazard exists and no fire hazard exists.

Class IIIA lasers:
Power output between 1 milliwatt and 5 milliwatt. These lasers can produce spot blindness under the right conditions and other possible eye injuries.Laser pointer that have a Class IIIa laser should have a laser emission indicator to tell when the laser is in operation. They should also have a Danger label and output aperature label attatched to the laser pointer. A key operated power switch should be used to prevent unauthorized use. No known skin hazard or fire hazard exist.