The ballot will be a crucial first test of internet voting, which
the government has so far shied away from.
Labour's 8,500 councillors will vote for their representatives on the National Policy Forum, one of the party's main decision-making bodies.
Sir Jeremy Beecham and Hammersmith & Fulham LBC's Sally Powell have been re-elected unopposed to the party's national executive committee.
Howard Knight, head of Labour's local government unit, said: 'If these elections are
successful, in terms of increasing voter participation, I would hope to see other parties and even the government use electronic voting.'
The ballot closes on 5 September.