Labour Standards Inspection Office
A local office of the Ministry of Health, Labour and Welfare responsible for enforcing labour laws, inspecting workplaces, and handling worker complaints.
I consulted the Labour Standards Inspection Office because my overtime pay wasn't being paid.
The Labour Standards Inspection Office investigates whether working conditions violate the law.
Compound of 労働 (labour), 基準 (standard), 監督 (supervision/inspection), and 署 (office). The term directly describes the function of the office.