Workplaces thorughout Canada (whether you employee 2 people or 2000) are legally required to comply with the Canada Labour Code and its general charge of responsibility. If you are not familiar with the Canada Labour Code, details can be viewed on-line at: www.laws.justice.gc.ca/en/l-2 .
In addition, workplaces in British Columbia (again, whether you employ 2 people or 2000), are required to comply with the Workers Compensation Act and with the Occupational Health & Safety Regualtions (OHS). If you are unfamiliar with these acts they can be viewed on-line at www.worksafebc.com.