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Thread: Green Laser Regulations Changed - Are You Aware?

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    Question Green Laser Regulations Changed - Are You Aware?



    Our local Astronomy Public outreach group has been using green laser pointers since around 2012. I recently discovered that in 2014 Transport Canada Regulations changed due to the large number of incidents of pointers being aimed at cockpits. The current regulation is found here. What changed was in 6.01.21 " Any person planning to project or cause to be projected a directed bright light source into navigable airspace with sufficient power to create a hazard to aviation safety shall provide written notification to the Minister before the projection" the clause "with sufficient power to create a hazard to aviation safety" was removed. The previous clause meant we could probably argue that any laser pointer of 5mW or less would be exempt.

    The Transport Canada website here also provides a notice of proposal form that they ask you to complete to obtain written permission. The form seems overly scientific (looks more like what researchers would provide vs an educator) and has some complex calculations required for Maximum Permissible Exposure and Visual Effect Calculations.

    I have reached out to RASC to see if they have any advice on how to fill out the forms. It also seems to me that TC should exempt areas outside a certain distanced from airports (ours is at least 40km from any airport). Are folks aware of this? It pretty much means GLPs can no longer be used without written permission from Transport Canada.
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    Default Re: Green Laser Regulations Changed - Are You Aware?

    This might be a silly question,do people use green lasers for demonstration,navigation of stars,if so,how does this work visually,is that the idea/reason for the restriction?

    edit: curious on how it works, iv'e seen lasers in clubs that visual you can see the line of sight but with the aid of smoke machine ectt. i have a laser here,i'm going to give it a go in the night sky.

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    Default Re: Green Laser Regulations Changed - Are You Aware?

    Now there's a law without any merit. Politicians at their best - broad, sweeping rules that they obviously didn't even think about. "directed bright light source" - does that apply to high pressure sodium street lights that project massive amounts of blinding light into the sky causing sky glow which interferes with visual line of sight? Did these guys even think for a moment what they were writing? And is a standard GLP really a bright light source at 5mW compared to 1000W street lights?

    My wife use a GLP to point out stars when doing our constellations stories. I have one on my scope to help find objects instead of a sighting scope - and it also shows people where the scope is pointing. We are always careful to ensure the lasers aren't pointing at planes. Our GLPs are rated at 1000m and not ever likely to hit an aircraft unless said aircraft is already in serious distress. Don't tell US lawmakers or they'll probably pass a similarly inane law.
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    Default Re: Green Laser Regulations Changed - Are You Aware?

    with sufficient power to create a hazard to aviation safety
    That's a tad vague!

    I use a GLP occasionally to ball park a pointing solution. But it is only on for less than a minute more like 15 seconds then off for the rest of the night. If I even hear an aircraft I turn it off.

    I wonder though if an aircraft is at 30,000 feet just how big a 'hazard' a GLP would actually be?
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    Default Re: Green Laser Regulations Changed - Are You Aware?

    What about those new 5000K LED street lights?
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    Default Re: Green Laser Regulations Changed - Are You Aware?

    I really don't care what the regulations are. I got a green laser years ago as a gift but never used it - too many planes in my sky from across the river (Detroit) so I simply never chanced it.....

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    Default Re: Green Laser Regulations Changed - Are You Aware?

    Yes GLPs are great for pointing out constellations, asterisms, and showing folks what your telescope is pointed at in the sky. The green laser works nicely because our rods in the eye are most sensitive at 500 nm which is in the green/cyan area of the spectrum, so the green laser shows really well at night. It appears as if the laser is travelling several hundred meters up which means it almost appears to touch the object you are pointing at!
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    Default Re: Green Laser Regulations Changed - Are You Aware?

    Quote Originally Posted by UlteriorModem View Post
    That's a tad vague!

    I use a GLP occasionally to ball park a pointing solution. But it is only on for less than a minute more like 15 seconds then off for the rest of the night. If I even hear an aircraft I turn it off.

    I wonder though if an aircraft is at 30,000 feet just how big a 'hazard' a GLP would actually be?
    According to Scientific American a laser beam can cause significant glare to a pilot as far as 3km away.
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    Default Re: Green Laser Regulations Changed - Are You Aware?

    Quote Originally Posted by Pauls72 View Post
    What about those new 5000K LED street lights?
    Definitely a major source of glare and light pollution, but since the street light is scattered while the laser beam is confined to a small diameter beam, it's not a hazard to pilots.
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    Default Re: Green Laser Regulations Changed - Are You Aware?

    I got one mounted next to my dot finder. Works great when some asks "What'cha lookin' at?"
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