Waiariki MP Te Ururoa Flavell backs a call for the Government to introduce mandatory Maori and English signage at places such as banks and airports.
Te reo Maori group Umere wants Maori and English signposting to be used in locations to give effect to Maori as an official language.
"We think the minister (Mr Flavell) will support us," Umere chairwoman Maraea Hunia said.
"We're noticing that our airports and banks and other organisations are putting other languages ahead of Maori, and that a law change will address this."
The group is seeking a policy of mandating te reo Maori and English signs at major institutions including banks, airports, national retail chains, schools and other large government institutions, with other languages included in smaller font.