[en] Mining that has natural radionuclides associated with the ore is known as NORM mining. The Santa Quiteria Unit (USQ) is included in this category. It is a NORM phosphate mine that belongs to the Nuclear Industries of Brazil. This unit is divided into two areas: the phosphate mining and production (conventional mining facility, CMF-USQ) and a production of uranium diuranate (nuclear facility, NF-USQ). The NF-USQ must follow the Brazilian legislation for nuclear installation (NF). This legislation is under the responsibility of the Nuclear Energy National Commission - CNEN, the nuclear regulatory agency in Brazil. Brazilian law on NF requires the facility to have a system of radioprotection and also requires the existence of a radiation protection service (RPS), composed of trained professionals and coordinated by a radioprotection supervisor (RS), accredited by CNEN, which manages the implementation of the occupational radiation protection program (ORPP). This work reports on the design of the ORPP for the NF-USQ associated with CMF-USQ, and on the minimum requirements for a RPS and the kinds of monitoring to be carried out. It also aims to classify the areas as for radioprotection aspects, and to indicate the number and qualifications of the radioprotection staff. Moreover, the work also informs the equipment necessary to the operation of the RPS and other relevant parameters. Finally, it explains the models used in estimating doses for occupationally exposed individuals (OEI) and for individuals of the public (IP), and also the derived limits proposed by the operator for the NFUSQ. The NF-USQ will have 51 OEI, of which 11 belonging to the RS, one being the RPS accredited by CNEN. The NF will be composed of 12 areas, 10 being free areas, one will be supervised and one will be a controlled area. Individual and area monitoring will be carried out. The derived limits proposed by the operator are shown in table 1. These derived limits are calculated based on the limit of 20 mSv y^-1, 2,000 hours of work per year, and a breathing volume of 2,400 m³ y^-1. The radionuclide in question was U-nat (composed of 48.9% of ²³⁸U, 48.9% of ²³⁴U and 2.2% of ²³⁵U), type F. The maximum estimated dose in operation for the OEI was 3.5 mSv y^-1, and for the individual the public 0.15 mSv y^-1. Admission, periodic, special and demission examinations are indicated as medical supervision. Aiming optimization, a training program will be implemented at USQ. The OEI of the USQ will be trained before starting its activities with radioactive materials, annually as a routine, and whenever there are changes to the ORPP, to the operation of equipment or procedures in general, as work is in progress. People contracted for temporary services will receive an introductory training to radioprotection. Their services will be continuously monitored by technicians of Radiological Protection. The administrative support workers will receive only basic instructions. (author)