Hate to go here but lawyers and silliness have driven me to it. Your helmet is illegal by the letter of the law and you can't change that fact. Realize this
is a game for people who do not participate in triathlon and do the following. After buying your 300 dollar helmet go to walmart and by a 20 dollar helmet.
Scrape out the CPSC sticker and superglue it into your 300 dollar helmet next to the Ozzie certification. Put a strip of clear packing tape over the whole
bit to protect it from sweat. Done and dusted. Desperate times call for desperate measures. You shouldn't need to go to these lengths but please refer
to my opening statement.