The theory part of the programme - which brought promising young referee Amon Rimene to the union's ranks - runs over two days before participants are asked to control two age group fixtures.
Students who successfully complete the theory, including components of health and safety and injury prevention, receive four NZQA credits at level three.
A further six credits can then be earned if they adequately control their two matches.
Six Otumoetai College students officiated the first of those matches during trial games at the school last week.
"They've been really keen - most of them are choosing to do it. They've really enjoyed it because it's given them a grasp of some of the rules they didn't know and also kids love responsibility and that challenge of feeling important and respected," McLean said.
"After refereeing for 10 minutes they all got their confidence up and started talking well, it was really positive."
McLean said having Rimene as a poster boy of sorts was a huge plus for the programme.
"Amon is a well-known person and a character and a good humble boy. Everyone gets on well with him, they all know him, so other kids see that refereeing is an option.
"He's quite a cool kid - he's not a geeky ref - he's a top lad so they think that's not a bad pathway for them. He's a key person in the Bay."
The course is one of a number of initiatives aimed at recruiting referees, with past players and parents also seen as candidates.
McLean's role is a result of support from TECT, while Bay of Plenty Rugby Union operations manager Neil Alton said the recruitment campaign aims to revert a drastic shortage of referees at all levels.
"It is important for the game to not only have a strong base of players and coaches but referees as well," said Alton.
"There is no game without a ref and a much better game with one who is well trained."