Most of the official (CDC) Vaccine Information Statements and record keeping requirements are located at: http://www.cdc.gov/nip/publications/VIS/default.htm.
Additional information can be located at CDC's National Immunization Program at: http://www.cdc.gov/nip/publications/
Also from the National Center for HIV, STD and TB Prevention at: http://www.cdc.gov/nchstp/tb/
The following information is from the Immunization Action Coalition at http://www.immunize.org/
"Q Are VIS's "informed consent" forms?
A No. In fact, even when vaccine information materials had tear-off sheets for parents to sign, they were not technically informed consent forms. The signature was simply to confirm that the "Duty to Warn" clause in the vaccine contract was being fulfilled. There is no Federal requirement for informed consent. VIS's are written to fulfill the information requirements of the NCVIA. But because they cover both benefits and risks associated with vaccinations, they provide enough information that anyone reading them should be adequately informed. Some states may have informed consent laws, covering either procedural requirements (e.g., whether consent may be oral or must be written) or substantive requirements (e.g., types of information required). Check your state medical consent law to determine if there are any specific "informed consent" requirements relating to immunization." (http://www.immunize.org/vis/instr00.htm)