[West Coast GTO]

This post is definitely off topic so I might get one demerit;

Summary of Federal Law
There is no federal waiting period. Under the National Instant Criminal Background Check System (NICS), a dealer may transfer a firearm to a prospective purchaser as soon as he or she passes a background check.11 If the FBI is unable to complete a background check within three business days, the dealer may complete the transfer by default.12
Federal law does not require private sellers to perform background checks on gun purchasers. Accordingly, persons purchasing firearms from private sellers may take immediate possession of their weapons, unless state or local law provides otherwise.13
SUMMARY OF STATE LAWS GOVERNING WAITING PERIODS
(This summary was last updated June 24, 2013.)
Ten states and the District of Columbia have waiting periods that apply to the purchase of some or all firearms.14
Additional states require firearm purchasers to obtain a license or permit prior to the purchase of a firearm. Licensing laws of this kind play a similar role to waiting period laws. See the Licensing of Gun Owners and Purchasers policy summary for information about licensing laws.
States Imposing Waiting Periods for Purchases of All Firearms
State (Waiting Period)
California (10 days)15
District of Columbia (10 days)16
Hawaii (14 days)17
Illinois (24 hours) (long guns); 72 hours (handguns)18
Rhode Island (7 days)19