Wikipedia:Good article criteria/GAC

0	Quick fail
0a	It is a long way from meeting any one of the six good article criteria
0b	It contains copyright violations
0c	It has, or needs, cleanup banners that are unquestionably still valid. These include {{cleanup}}, {{POV}}, {{unreferenced}} or large numbers of {{citation needed}}, {{clarify}}, or similar tags (See also {{QF}})
0d	It is not stable due to edit warring on the page
0e	It has issues noted in a previous GA review that still have not been adequately addressed, as determined by a reviewer who has not previously reviewed the article

1	Well-written
1a	the prose is clear, concise, and understandable to an appropriately broad audience; spelling and grammar are correct
1b	it complies with the Manual of Style guidelines for lead sections, layout, words to watch, fiction, and list incorporation
2	Verifiable with no original research
2a	it contains a list of all references (sources of information), presented in accordance with the layout style guideline
2b	reliable sources are cited inline. All content that could reasonably be challenged, except for plot summaries and that which summarizes cited content elsewhere in the article, must be cited no later than the end of the paragraph (or line if the content is not in prose)
2c	it contains no original research
2d	it contains no copyright violations or plagiarism
3	Broad in its coverage
3a	it addresses the main aspects of the topic
3b	it stays focused on the topic without going into unnecessary detail (see summary style)
4	Neutral: it represents viewpoints fairly and without editorial bias, giving due weight to each
5	Stable: it does not change significantly from day to day because of an ongoing edit war or content dispute
6	Illustrated, if possible, by media such as images, video, or audio
6a	media are tagged with their copyright statuses, and valid non-free use rationales are provided for non-free content
6b	media are relevant to the topic, and have suitable captions

Usage