The article reasonably covers the topic, and does not contain obvious omissions or inaccuracies.
It contains a large proportion of the material necessary for an A-Class article, although some sections may need expansion, and some less important topics may be missing.
The article has a defined structure.
Content should be organized into groups of related material, including a lead section and all the sections that can reasonably be included in an article of its kind.
It is written with as broad an audience in mind as possible. The article should not assume unnecessary technical background and technical terms should be explained or avoided where possible.