You can totally black out the rear side windows and the rear window... as long as you have mirrors on either side of the vehicle, which we all do. I thought all across Canada (BC-manitoba it is for sure, quebec and the maritimes as well) it was a zero tint policy on the fronts due to the 'safety risk' of not being able to break the side window glass.
'07 Ram Charon RIP
'09 Ram 1500 Sport - build in progress
in ontario we are allowed to have 35% on the front windows
however it is still up to the cops discretion as he has to feel he can determine your gender by looking through the windows.
i myself have been running 20% all around for years now and never had a problem
Super Bee #0427 of 1000 with USW Forged Wheels
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FX Tints, Whitby ON
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growing up in bc, i got busted for 50% tint on the front windows even when they were rolled down. i wasn't a fan of the police in my area. that's the way they were. my fastest ticket was 14 km/h over the limit (104 in a 90). oy!
as for here, i have 20% on the fronts on my magnum (matches the back windows basically) and have not had any issues. mind you, i've only been pulled over once in the magnum (was two days late putting the licence renewal sticker on the plate ) and the black, female OPP officer didn't harass me about the windows, or anything thing else on the car either (modded headlights, tinted tails, smoked plate covers, etc.). i was surprised to say the least. she didn't seem friendly, and yes, i figured she'd have a chip on her shoulder.
2010 LX&Beyond Nat'ls Best In Show Magnum Daily Driver
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2-toned, trufiber srt hood, 22"x9.5" gray Foose Nitrous, colour-matched headlights w/halos, 6000K HIDs (lows/fogs), tinted marker lights, colour-matched fog bezels, tinted tails, Airhammer, Eibach Pro-kit, Predator, Edelbrock headers/cat-back, jba hi-flow cats, 82*C thermostat (180*F), remote start, MDS indicator, Mopar hitch. So far.