House committee substitute makes the following changes to the 1st edition.

Amends proposed GS 90-153.1 as follows. Limits the applicability of the statute to motor vehicle liability claims for personal injury and to motor vehicle medical payments claims. Removes provisions requiring the review of billing records. Provides that chiropractic peer reviews are also done for the purpose of advising a third party payer as to whether the services rendered were supported by adequate documentation. Adds that chiropractic peer review does not include automated screening programs. Amends the requirements that must be met by the individual performing the peer review to prohibit collecting a fee based on the extent to which the third party payer reduces (was, collecting a fee based on the extent to which the individual recommends a reduction of) the treating chiropractor's bill. Removes the requirement that a person performing a peer review disclose his or her identity and office address to the treating chiropractor. 

Changes the act's effective date from when the act becomes law to October 1, 2015, applying to reviews conducted on or after that date.

Amends the act's long title.