Certainly the RAC told me that they didn't need to see the certificate except in the event of a claim.
some companys say this but when they do ask you will need lpga / uklpg cert to show them. if you not have this they have the right to void your insurance.
Correct - what I would do is send them a copy of the certificate so that they have the opportunity to see it and reject it if they wish. If you can prove later on that they had the certificate and raised no objection, then they aren't going to get away with rejecting it if you have to make a claim. With my insurers, at one point they told me they needed an LPGA certificate, but then they accepted my own certificate together with a copy of my training certificate - ie evidence that I'm (in CoP 11 parlance) a Competent Person
all insurance policys say any modifications to your vehicle must be done by approved person or persons. the only approvel in the uk is lpga /uklpg. not an a4 sheet of paper made up on a computer. by some one not properly approved by the govening body. it is only a matter time before dvla will be asking for lpga / uklpg certs. then it will hit the fan.
Where on earth did that fantasy come from ? I have NEVER seen such a clause in an insurance policy (and yes, I always read the small print carefully). Yes, you have to tell them of any mods, and yes, they may ask for some form of report (eg I've been asked for a mechanics report when I've changed engines in the past), but I have never ever had a request that it be done by an "approved person" (usually it's been "from a garage" or "from a mechanic").
Although there are certification schemes for vehicle technicians, that is not absolutely not the same thing as an approved person as various bodies would like it to be (UK LPG isn't the only body that eyes the captive paying audience that the likes of Gas Safe have).
On and off over the years, there have been many suggestions that all our vehicle mechanics/technicians should be registered or approved in some way. Usually it's a call for all work on vehicle to be done by someone trained and registered to work on that make/model - and every time it's thrown out as disproportionate and would kill off the independent trade to the detriment of consumers (both cost and safety).
And lastly, go and take a look at what CoP 11 says about people installing and maintaining LPG conversions. You'll find it says they should be a "Competent Person
", which is defined as "a person with knowledge, training and ability to carry out their work safely and with necessary proficiency to ensure the subsequent operation of the vehicle.