The pair will also have to see a councillor specialising in alcohol problems.
Orange is New Zealand's top harness racing driver and told the Herald he apologises to those inside the industry and punters.
"I am very remorseful over what happened and will try and make amends," he said last night.
"I went to two functions the night before and had a bit to drink and was home just after midnight, woke up feeling okay and went to work not thinking anything of it.
"So I was surprised and disappointed to blow a positive test and I am looking forward to working through how I can deal with alcohol better."
The suspension comes a few months after champion jockey Chris Johnson was also suspended for the same offence. He has since returned to racing and set a national record for wins with 2452.