[Carriage Hill]

What is a COS, please?

[C210N]

Convention of States, using a part of Article V of the Constitution as an alternate means of *proposing* amendments for State ratification, that bypasses Congress, and comes instead from States legislatures.

[thinden]

Convention
Of
States

[JesusIsLord]

What is a COS, please?

'Convention of States', which is described in Article V of the Constitution.