(c) Persons who have become incapacitated by injury or illness.
3. Temporarily exempt from compulsory labor are:
(a) Persons who are temporarily incapacitated owing to illness or injury, for a period necessary for their recovery.
(b) Women, for a period of eight weeks before and eight weeks after confinement.
4. All students shall be subject to compulsory labor at the schools.
5. The fact of permanent or temporary disability shall be certified after a medical examination by the Bureau of Medical Survey in the city, district or province, by accident insurance office or agencies representing the former, according to the place of residence of the person whose disability is to be certified.
Note I. The rules on the method of examination of disabled workmen are appended hereto.
Note II. Persons who are subject to compulsory labor and are not engaged in useful public work may be summoned by the local Soviets for the execution of public work, on conditions determined by the Department of Labor in agreement with the local Soviets of trade unions.
6. Labor may be performed in the form of—
(a) Organized cooperation;