Welcome to the Middlesex Association of Cricket Officials website.

Here you can find a variety of information about officiating in Middlesex, including competition regulations, help with the Laws of Cricket, and information about upcoming Middlesex ACO courses and events.

If you have never umpired or scored a game of cricket and would like to get involved, or if you are an experienced official looking to progress, please visit our courses section for details of upcoming courses. Most of these courses take place outside of the season during the winter months. Newly announced courses will be published in the news section and on Twitter.