Just to add a similar gripe of my own that has cropped up today. My work have set up a couple of rides this weekend, a 100 miler for the athletes and a family friendly 20. minimal support for the100 and none for the 20, we're not in liveried tops and we do it on our own time, no association to work at all apart fom it being the start and finish point.
The Gettysberg address is far shorter and to the point than the disclaimer we have to sign to participate, which advised helmets but then had a bullet point saying (I paraphrase) 'it's up to you but if you get hurt or killed through not wearing one don't come moaning to us'. (fair enough, my head, my choice, no bother with that at all).
The joining instructions that arrived today had a you must bring section including a helmet and backed it up with a helpful little clipart of a helmet with the epithet No Helmet = No Ride.
This has annoyed me far more than I expected it to. (70 odd % of the time I do wear a helmet) I'm not anti lid, I simply expect the right within the law to do with my head as I wish, on my own bike, on my own time & when I am doing nothing that represents the company through my dress or action that could bring it into disrepute. In fact I've cycled home from work many times helmetless and far more readily identifiable as working for them.
Cycling mileage is offered for business trips within work time on the proviso I wear a lid and hi-viz. No bother with that at all, I'm on paid time, if they told me to wear a pink tutu and Jimmy Cricket wellies its their perogative.
I will be taking it up with them in the same manner as puddles has, politely, based on the (conflicting) evidence, highlighting that helmet compulsion is seen by some as a disincentive and a voluntary ride for health should not seek to disenfranchise people from a healthy activity by overly prescriptive nannying and seeking the limits of where they feel corporate responsibility meets personal.
I shall not be taking part now but will go with my son on a 20 mile ride of our choosing dressed however the hell we like.