well its not totally true that you must first have the systems on your variance
on my variance i have it worded so that i can use any certified laser system the only models listed are the ones my company manufactures
below is part d from my variance
D. Product for Which Variance is Granted
This variance is granted for the Class IIIb and IV laser light
shows based on Party Blasters and ClubCat HP made by
Technological Artisans. Their laser projectors may contain
argon/krypton, DPSS frequency doubled Nd: YAG or 400- 700
nanometer solid state diode laser systems.
The firm also may manufacture, report, and certify Class IIIb iv laser light show proj ectors under this variance. 'Further, firm may incorporate into their laser light shows any laser
projection systems, which have been certified and reported firm or by another manufacturer under an approved laser light
show variance, except:
,
1) projection systems designed or intended to produce
visible effects by means of invisible, laser
emissions, or
2) projection systems designed or intended to produce
audience scanning effects.
The firm's laser light shows may be presented at permanent
pr temporary locations in any type facility or outdoor,
unenclosed area for any contracted locations.
The effects employed may be front and rear screen
projections, multiple reflections/ diffraction effects.
reflections from stationary from stationary mirrors, and
enhanced scattering effects..