Hamilton By-law 07-170, s. 29 — The licence number issued to a Heating, Air Conditioning, and Ventilation Contract by the Director of Licensing or the business name of the Heating, Air Conditioning, and Ventilation Contractor shall be displayed in any advertising for that trade of such person

The licence number issued to a Heating, Air Conditioning, and Ventilation Contract by the Director of Licensing or the business name of the Heating, Air Conditioning, and Ventilation Contractor shall be displayed in any advertising for that trade of such person.

PART V: DRAIN REPAIR CONTRACTORS AND DRAIN INSTALLER MASTERS INTERPRETATION 30.(1) In this Schedule, (2) The provisions of this Schedule shall not apply to the performance by a plumber licensed hereunder and doing plumbing or drainage work or cast iron or other metal plumbing work outside a building or doing the installation of septic tanks. LICENCE REQUIRED