The employer is responsible for obligations arising from compulsory social insurance against the risks of workplace accidents and occupational diseases. Requires the internal regulations of firms, workplaces, tasks or economic units to specify rules and instructions for prevention, hygiene and safety that should be observed in them. Establishes the amount and receipt of compensation corresponding to the average pay received by the worker during the entire term of his/her contract or of his/her last 11 years. Workers not incorporated into the pension system will be affiliated to a fund administrator. Article 236, subsection 1.