Criticism after 'yes' same-sex marriage campaign dips into taxpayer money

The same-sex marriage debate sees the ACT Government copping criticism for dipping into taxpayers' money to fund a "yes" campaign.

During a motion in the Legislative Assembly today, Chief Minister Andrew Barr choked back tears while seeking the support of other members.

The openly gay Labor leader vowed to support Canberra's LGBTI community.

"We will be actively campaigning, on your behalf, in favour of marriage equality," Mr Barr said.

The government plans to ramp up its "Rainbow CBR" branding, along with supporting community groups and public art.

Opposition Leader Alistair Coe told the assembly the Canberra Liberals don't support the use of government resources to campaign for either side of the debate.

"Even people who are for gay marriage, I think may well find it objectionable that there is tax payer money going to this one side of the debate," Mr Coe said.

He also argued the Chief Minister's campaign would put public servants in a "difficult situation" if they are called on to complete tasks to promote marriage equality.

Mr Coe acknowledged the diversity of views within his own party, and reaffirmed his intentions to vote against same-sex marriage in the non-binding postal plebiscite in September.