How is the labour force defined and who measures it? multiple choice 1 Statistics Canada measures the labour force as people 18 years of age or older who are actively seeking employment. The Canadian Bureau of Labour Statistics (BLS) measures the labour force as people 15 years of age or older who are actively seeking employment. Statistics Canada measures the labour force as people 15 years of age or older who are actively seeking employment. The Canadian Labour Commission (CLC) measures the labour force as people 18 years of age or older who are actively seeking employment