He said some potential candidates have already contacted him and are aware of this requirement.
Councillor Angela O'Leary said during the council meeting, an example was her car which she had recently signwritten to advertise her mayoralty bid.
"My car has been done now, and I will carry that through. You have to fairly apportion, and the legislation leaves it up to you, a certain amount from here to that election period," Ms O'Leary said.
Councillor James Casson pushed for further explanation, asking if the two current billboards used by the mayor in Frankton and on the back of central Hamilton's Pak'nSave would be apportioned.
"If mayor Andrew brought his building size signs right now all the way through past the election time of July 12, that would be apportioned," Mr Casson said.
Ms Jordan said the question should be directed to the electoral officer, but it would be a similar to Ms O'Leary's car situation.
Mr King told Hamilton News later that they are not part of an electioneering campaign. The billboards say "Drive safely these holidays".
"They are me just sending messages of goodwill, or messages to the public that directly lines up with resolutions from council," Mr King said.
Mr King said the billboards are funded personally, and they are just a message from the mayor's office.
"I don't take any expenses from council, all of this is run through my own personal funding. I don't have a mayoral car when I could have one, I don't take any cell phone costs, I don't take any expenses whatsoever."