It's the last provision of an airgun manual which says:
"To the extent any provision of this warranty is prohibited by federal, state, or municipal law, which can not be preempted, it shall not to be applicable."
I know the meaning of each word but can't get the total notion of these sentences. May you please simplify those?
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Comments  (Page 2) 
I'd modify CSnyders response slightly: If any part of this warranty is in violation of federal, state, or municipal law, that part doesn't apply.
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