The Floyd Landis decision outlines the hierarchy involved. The next four paragraphs are quotes from the Landis case that describe the relevant actors.
The Claimant, USADA is the independent anti-doping agency in the United States, responsible for the managing of the anti-doping testing and adjudication processes for the member constituents such as USA cycling.
. . .
The Athlete holds a US license and in signing the license the Athlete agrees that the sole jurisdiction for resolving any dispute that arises shall be in the courts of domicile of the UCI. The UCI Cycling Regulations provide that adjudication of matters shall be handled by the national federation of the athlete involved.
UCI is the International Cycling Union and is the International Federation {“IF”} responsible for the organisation of the sport of cycling worldwide. It is an association of national cycling federations. The purpose of the UCI is to direct, develop, regulate, control and discipline all forms of cycling. Under UCI Cycling Regulations (“UCI Rules”) Chapter IX, it is the responsibility of USA Cycling to conduct results management and hearings regarding doping allegations. As explained more fully below, USA Cycling through contract has delegated its obligation under the UCI Rules, Chapter IX, to USADA.
USA Cycling is the official cycling organization for road racing, mountain racing, track, cyclo-cross and BMX cycling in the United States and is responsible for identifying, training and selecting cyclists to represent the United States in international competitions.
USA Cycling is a member of UCI.
USADA is funded from those contracts and from a grant from the United States Office of National Drug Control Policy. [url}http://en.wikipedia.org/wiki/United_States_Anti-Doping_Agency[/url]
Both the UCI and USADA are signatories to the WADA code.
http://www.usacycling.org/how-does-usada-ensure-a-fair-playing-field-for-amateurs.htm
USADA contracts with relevant testing authorities to provide drug testing programs.
http://www.usada.org/contract-testing/
UCI is the ultimate authority. The UCI has delegated to USA Cycling the management of the antidoping program for US cyclists. USA Cycling contracts with USADA to run USA Cycling's antidoping program.