Physical examination required for compensation under Code Section 31-29-1. Periodic physical examinations of persons receiving compensation. Effect of retirement under Chapter 2 of Title 47. Contributions to retirement system where employee does not retire. Sec. 31-29-6. 31-29-7. 31-29-8. Rights of employees under State Personnel Administration. Rules and regulations of employing authority; exclusion from right to compensation of employees not subject to exposure. Specific inclusion of employees of certain institutions.