The OETIO provides training from two primary campuses in Ontario. The Morrisburg campus, in eastern Ontario, delivers heavy equipment operator training and also serves as the design, development and administrative center of the OETIO.

The Oakville campus, a new modern facility co-located with the International Union of Operating Engineers, Local 793 headquarters (IUOE), opened in January of 2006 as the center for crane operator training. Both campuses also provide a wide range of construction safety courses in support of industry requirements.