In the confines of your own home, NO Variance needed in the USA, Within your back yard, with NO light within 2 meters horizontal, 3 meters vertical from any guest location, and 100% terminated, not within 7.5 miles of a Helipad or Airport, and say singlemode diodes, no one will say a thing. Do not charge admission or advertise. Texas, Arizona, Massachusets, other rules may apply.
Keyword here is NOT in public. Not in a club, not in a bar, not in a school, not in a park, nor where dogs freely bark.
Keep away from Pets, Toddlers, Children, Drunks, and the Nieve.
Let it into airspace or off your property in any way, and you can have a world of hurt with a Felony from the FAA for an Airspace Violation. Keep the light terminated.
You can own any laser you want in the USA, with the exception of a few states where it needs registered. it is how you USE it. Personal Use on own turf with no payment or benefit changing hands, your good.
Be safe and keep it away from eyes. Watch out for scatter or beams chandeliers, other reflective surfaces, even dull metal.
www.laserpointersafety.com has some interesting reading.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...