Industry Codes of Practice for environmental issues

[W&Co]

I have been asked by a client to complete an environmental questionnaire; one of the questions asks, "Do you comply with industry Codes of Practice which address environmental issues?"

I think we are doing most things we need to do like recycling, electronic ballasts, energy saving LEDs etc - we've even got a 'Green' section on the home page of our website: www.w-co.co.uk

Does anyone know of any Codes of Practice specifically in our industry which address environmental issues?