Got you, so (over simplified) you would be prosecuted under the HSE, but would adhere to professional standards set by the IOSH.
As you've gone out of your way to become chartered, maybe sing about it on your site? It does say it on your home page, but you need to scroll down. maybe you could have a IOSH logo at the top, bigging yourself up?
Maybe a "Is your H&S man chartered?" Could use it as a selling point!
Just an idea, I'm full of 'em, I'll shut up now
