It means councils will no longer be responsible for rural fire and likely not be needed to fund it.
WDC emergency manager Matthew Smith said most councils in the region were of the same view and pleased that option was selected.
He said the DIA were in regular consultation with council and had gone about the proposed merger in a sensible way.
Rangitikei principal rural fire officer Paul Chaffe encouraged people to make a submission to the select committee. Submissions are open from now until August 18.
He said there would likely be local committees put in place to have a say in the local or regional operation of the new entity and that people may want to have a say on that during the submission phase.
The new service retains a mix of paid fire fighters and volunteers.
Submissions can be made at:
https://www.parliament.nz/en/pb/sc/make-a-submission/document/51SCGA_SCF_00DBHOH_BILL69468_1/fire-and-emergency-new-zealand-bill