You're right about copywriting. I see this construction all the time -- whether on a label or caption or product description -- so I passed it on as a standard.On the other hand, I don't write copy, and "certified to the most ..." may be the standard way of saying it.
Well, you're dealing with writers -- and they don't have to be certified to anything to write.The thing is i've found both in the Internet:
"Their Approved Equipment Directory lists tanks that are certified to environmental standards OFS T100 and OFS T200."
"The Group looks to use companies that have been certified to environmental standards, such as ISO 14001."
"The Academy Seminars will be certified by quality standards which guarantee an approved standard of academic discourse."
"Our manufacturing plant is certified by Quality Standards ISO 9002."
Well, in my opinion, yes. But do you have the entire expression?So the correct sentence would be "certified to (meet) the most important quality and environmental standards"?