Only limited spaces remain for O's clash.
With a good sized travelling contingent expected from East London, there are now only limited spaces remaining in the official club car park, which is now expected to sell out before the weekend.
Fans are advised to either call up on Wednesday to book one of the remaining permits, or to make alternative plans for the weekend's game.
The club's Shuttle Bus service will be in full operation, including from adjacent to Colchester North Station, where trains from Stratford and Liverpool Street will come into Colchester for O's fans.
To book a parking spot, call the Ticket Office on 0845 437 9089 or visit in person. You can also book a permit online at www.colutickets.com.