All divisions are up for grabs at both East and West Sussex county councils, alongside some seats in Adur, Crawley, Hastings and Worthing alongside a number of by-elections.
Meanwhile the first-ever Bexhill Parish Council election is being held today (Thursday May 6).
Polling stations are open until 10pm tonight.
Voters should take a face covering and pen or pencil with them, but there will be spares available if they forget, clean their hands when entering and leaving the polling station and maintain a safe distance from other voters and polling station staff.
There may be queueing at busier times of the day.
Meanwhile the Sussex PCC candidates standing are:
Council results are due to be announced from Friday onwards, with PCC results due to be counted on Monday.