VoteWell.net Required Election Audits This page is alphabetical. Another page is by type of audit. Please email any corrections to admin@votewell.net			Check all ballots if needed?	Sample Size
Alabama	No audit required
Alaska	All contests, but never smallest precincts	Hand	Yes	1 large precinct per House district, with at least 5% of district ballots
Arizona	Few contests	Hand	Yes	at least 2% or 2 precincts
Arkansas	No audit required
California	All contests, but not late-arriving ballots	Hand	No	1% of machines or precincts
Colorado	Few contests	Hand, and independent machines at Sec of State	Yes	Risk-limiting
Connecticut	Few contests	Machines or hand	Yes	5% of voting districts
Delaware	None, no paper
District of Columbia	Few contests	Hand	Yes	5% of precincts and ballots
Florida	All or few contests, depends on county*	ClearBallot's independent machines to check all contests or hand to check a few	No	2% of precincts
Georgia	None, no paper
Hawaii	Few contests	Hand	Yes	10% of precincts
Idaho	No audit required
Illinois	All contests	Machines primarily	No	5% of precincts and machines
Indiana	All contests, if requested, but many counties lack paper	Machines different from voting system, or hand	Unclear	up to 5% or 5 precincts, but many counties lack paper
Iowa	Few contests	Hand	No	Not defined
Kansas	No audit required
Kentucky	All contests, but many counties lack paper	Hand	Unclear	3% to 5% of precincts
Louisiana	None, no paper
Maine	No audit required
Maryland	All contests	ClearBallot analyzes scans from election machines	Yes	All ballot images created by election machines
Massachusetts	Few contests	Hand	Yes	3% of precincts
Michigan	No audit required
Minnesota	Few contests	Hand	Yes	3% or at least 2-4 precincts
Mississippi	No audit required, and most counties lack paper
Missouri	Few contests	Hand	Yes	5% of precincts
Montana	Few contests	Hand	No	at least 5% or 1 precinct
Nebraska	Few contests, only if requested	Method unclear	No	2% of precincts
Nevada	All contests	Machines or hand	No rules	2% or 3% of machines
New Hampshire	No audit required
New Jersey	None, no paper
New Mexico	Few contests	Hand	Yes	None in race with over 15% margin of victory, otherwise 4-165 precincts across state
New York	All contests	Machines different from voting system, or hand	Yes	3% of precincts
North Carolina	Few contests	Hand	Yes	Risk-limiting
North Dakota	No audit required
Ohio	Few contests	Hand	Yes	Machines or precincts totaling at least 5% of votes
Oklahoma	No audit required*
Oregon	Few contests	Hand	Yes	3% to 10% depending on margin of victory
Pennsylvania	All contests, but many counties lack paper	Machines different from voting system, or hand	No rules	Lesser of 2% or 2,000 ballot images, but many counties lack paper
Rhode Island	Few contests	Hand	Yes	Risk-limiting
South Carolina	None, no paper
South Dakota	No audit required
Tennessee	Few contests, and most counties lack paper	Same method as election day	No	1 to 5 precincts
Texas	Few contests, and many counties lack paper	Hand	Unclear	at least 1% or 3 precincts, not paperless machines
Utah	All contests	Hand	No	1% of machines
Vermont	All contests in 6 random towns	ClearBallot's independent machines in 6 towns	Yes	All ballots in 6 random towns
Virginia	Few contests	Hand	Unclear	Risk-limiting
Washington	Few contests, only if requested	Hand	Yes	up to 3 precincts or 6 batches
West Virginia	All contests	Hand	Yes	3% of precincts
Wisconsin	Few contests	Hand	No	100 wards or other districts across state
Wyoming	No audit required

* Machines for voters with disabilities lack paper trail, though it would be useful for those who can see

VerifiedVoting has full details on sample sizes and procedures.

Wikipedia has same information in a sortable table.