As many threads said before as a US content producer you have to comply with the 2257 law.
http://www4.law.cornell.edu/uscode/18/2257.html
has the complete text of the law. The Parallel authorities link on the site brings you to the 28 CFR part 75 that is also important.
Now according to the psots I have been reading before a webmaster that merly buys his content would be fine just to post the 2257 notice and point it to the producers keeper of records.
After reading the 28 CFR part 75 it seems to be the requirement is a little more complex. It says the following:
- quote from 28 CFR part 75.2
(b) A producer who is a secondary producer as defined in
Sec. 75.1(c) may satisfy the requirements of this part to create and maintain records by accepting from the primary producer, as defined in Sec. 75.1(c), copies of the records described in paragraph (a) of this section. Such a secondary producer shall also keep records of the name and address of the primary producer from whom he received copies of the records.
- end quote
A webmaster falls under secondary producer so a content provider has to provide a copy of the documentation he is required to keep. If you don't have a copy of those records you are also not complying with the law.
That is only part of the 28 CFR part 75 and not the original law which holds a lot of legal uncertainties.
It's an interesting read and it seems that someone will take the heat before the matters are completly clear.