Occupational Title | Brief Number | HOC Code |
| Qualified Members of the Engine Department (QMED) (merchant mariners) | 379 | REI |
| Quality Assurance Coordinators | 150 | SCR |
| Quality Assurance Inspectors (pen & pencil industry) | 557 | CRS |
| Quality Control Inspectors (sporting goods production) | 567 | CRS |
| Quality-Control Inspectors (testers) | 603 | RIE |
| Quality Control Monitors (motor vehicle & parts manufacturing) | 376 | RCE, RIE |
| Quality Control Technicians (dairy products manufacturing) | 173 | RIE |
| Quality Engineers | 458 | IRE |
| Quantitative Psychologists | 144 | IES |
| Questioned Documents Examiners (forensic scientists) | 275 | IRE |
| Questionnaire Writers (marketing researchers) | 254 | IRS |
| Rabbis | 427 | SAE |
| Race Car Drivers | 656 | RES |
| Racetrack Workers | 629 | no code |
| Racing Secretaries (racetrack workers) | 629 | ESC |
| Racing Stewards (racetrack workers) | 629 | SER |
| Radar Associate Controllers (air traffic) | 322 | SER |
| Radar Controllers (air traffic) | 322 | SER |
| Radiation Analysts (health physicists) | 493 | RCS |
| Radiation Monitors (health physicists) | 493 | RCS |
| Radiation Oncologists | 462 | IRS |
| Radiation-Protection Specialists (industrial hygienists) | 461 | IRS |
| Radiation-Protection Technicians (hazardous material removal) | 566 | REI |
| Radiation Protection Technologists (health physicists) | 493 | RCS |
| Radiation Therapists | 375 | RIS |
| Radio Astronomers | 210 | IRE |
| Radio Dispatchers | 180 | CSE |
| Radiographers | 344 | SRI |
| Radiological Engineers (nuclear power plant) | 320 | RCS |
| Radiologic Technicians | 344 | SRI |
| Radiologic Technologists | 344 | SRI |
| Radiologic Technologists (radiologists) | 462 | SRI |
| Radiologists | 462 | IRS |
| Radiologists, Diagnostic | 462 | IRS |
| Radiologists, Interventional | 462 | IRS |
| Radio Mechanics (instrumentation technicians) | 194 | REI |
| Radiopharmacists | 636 | IRC |
| Radio and Television Broadcasting Workers | 428 | no code |
| Radio and Television News Reporters | 466 | ASI |
| Radio and Television Program Executives | 239 | AES |
| Radio and Television Time Salespersons | 309 | ERS |
| Railroad Clerks (ticket agents) | 333 | CES |
| Railroad Transportation Workers | 14 | no code |
| Ram Press Operators (pottery & porcelain ware industry) | 137 | RCE |
| Ranchers, Livestock (livestock industry) | 479 | RSI |
| Ranch Hands (livestock industry) | 479 | RSE |
| Rangers, Interpretive | 120 | ESR |
| Rangers, Law Enforcement | 120 | ESR |
| Rangers, Park | 120 | ESR |
| Real Estate Agents and Brokers | 55 | ESC |
| Real Estate Appraisers | 257 | SCE |
| Real Estate Finance Officers | 443 | SEI |
| Receptionists | 107 | CSE |
| Receptionists (congressional aides) | 525 | CSE |
| Receptionists (office) | 3 | CSE |
| Receptionists (temporary workers) | 674 | CSE |
| Recording Engineers | 317 | RES |
| Recording Industry Workers | 317 | no code |
| Recordists (motion picture industry) | 2 | REC |
| Records Officers | 371 | ESC |
| Recreational Therapists | 584 | SEC |
| Recreation Center Directors | 92 | ESA |
| Recreation Leaders | 92 | SEI |
| Recreation Superintendents | 92 | ESA |
| Recreation Supervisors | 92 | ESA |
| Recreation Workers | 92 | no code |
| Recruiters, Personnel | 559 | SCE |
| Recruiters, Personnel (human resources) | 258 | SCE |
| Recyclable Material Collection Supervisors (solid waste collectors) | 293 | ESA |
| Recyclable Material Collectors | 293 | RES |
| Referees (Sports) | 294 | ESR |
| Reference Librarians | 82 | SAI |
| Reference Librarians (health sciences) | 9 | no code |
| Refinery Operators (petroleum) | 188 | RES |
| Refinishing Technicians (automotive accessories installers) | 446 | no code |
| Refinishing Technicians (automotive body repairers) | 96 | no code |
| Refrigeration Technicians (heating & cooling) | 225 | RES |
| Refugee Officers | 105 | no code |
| Regional Economists | 233 | IAS |
| Regional Geographers | 155 | IRE |
| Regional Planners | 152 | ESI |
| Regional Security Officers | 388 | ERI |
| Regional Wildlife Agents | 213 | RES |
| Registered Mail Clerks | 335 | CRE |
| Registered Nurses (temporary workers) | 674 | SIA |
| Registered Professional Nurses | 75 | SIA |
| Registered Representatives | 433 | ESC |
| Registered Respiratory Therapists | 450 | SIR |
| Registrars, College and University | 371 | ESC |
| Rehabilitation Counselors | 279 | SEC |
| Rehabilitation Engineers | 519 | IRE |
| Rehabilitation Psychologists | 144 | SIA |
| Reinforcing Ironworkers (construction) | 359 | RES |
| Religion and Ethnic Relations Sociologists | 316 | IES |
| Religious Brothers | 440 | SAE |
| Religious Education Directors | 255 | SEA |
| Religious Priests | 440 | SAE |
| Religious Sisters | 440 | SAE |
| Renal Dialysis Technicians | 528 | ISC |
| Reporters, Court (secretaries) | 19 | CSE |
| Reporters, Newspaper | 198 | ASI |
| Reporters (publishing) | 231 | ASI |
| Reporters, Radio and Television News | 466 | ASI |
| Reproductive Endocrinologists (obstetrician-gynecologists) | 578 | IRS |
| Rerecording Mixers (motion picture industry) | 2 | RSE |
| Resawyers (sawmill) | 441 | RIS |
| Research Analysts (marketing researchers) | 254 | SER |
| Research Associates (biotechnologists) | 634 | RCS |
| Research Dietitians | 76 | ISR |
| Researchers, Marketing | 254 | ISC |
| Researchers, Public Opinion | 583 | CSE |
| Research Managers (marketing researchers) | 254 | ERI |
| Research Pathologists | 230 | IRE |
| Reservation Agents (ticket) | 333 | CES |
| Residence Hall Directors | 311 | SEC |
| Resident Assistants | 311 | SEC |
| Resident-Care Aides | 649 | ESR, SRI |
| Residential Counselors | 649 | SAE |
| Resistance Welders | 27 | RES |
| Resort Industry Workers | 50 | no code |
| Respiratory Therapists | 450 | SIR |
| Restaurant Managers | 100 | ESR |
| Retail Buyers | 95 | ESC |
| Retail Jewelers | 652 | ESA |
| Retail Jewelry Salespersons | 652 | ESA |
| Retail Managers | 673 | ESC |
| Retail Salespersons | 15 | ESA |
| Retail Trade Stock Clerks | 108 | RCE |
| Retouchers (photofinishing laboratory technicians) | 310 | RCA |
| Ribbon Winders (pen & pencil industry) | 557 | CRE |
| Riggers, Boat (pleasure craft boatbuilders) | 661 | RSE |
| Riggers (construction ironworkers) | 359 | RSC |
| Riggers (shipbuilding) | 435 | RES |
| Riggers (stage production technical staff) | 675 | RES |
| Rigging Slingers (logging industry) | 416 | RES |
| Ringmakers (bench jewelers) | 640 | RES |
| Ring Masters (circus performers) | 251 | EAS |
| Ringpersons (auctioneers) | 102 | no code |
| Risk and Insurance Managers (financial) | 134 | ESA |
| Risk Managers | 650 | ESA |
| Roadability-Machine Operators (motor vehicle & parts manufacturing) | 376 | REC |
| Robotics Engineering Technicians | 497 | IRE |
| Robotics Technicians | 497 | IRS |
| Rodeo Performers | 677 | RES |
| Roller Mill Operators (paint & coatings industry) | 56 | RCS |
| Rollers (iron & steel industry) | 305 | RIE |
| Rollers (laundry) | 79 | REI |
| Roofers | 430 | REC |
| Rotary Drillers (petroleum) | 263 | REI |
| Rotary Helpers (petroleum drilling) | 263 | RCE |
| Rotary Rig Engine Operators (petroleum drilling) | 263 | RES |
| Rough Carpenters | 86 | RIS |
| Rougher Pulpit Operators (iron & steel industry) | 305 | RCS |
| Roughnecks (petroleum drilling) | 263 | RCE |
| Roustabouts (petroleum drilling) | 263 | RCS |
| Route Drivers (truck) | 42 | RCS |
| Route Service Representatives (laundry) | 79 | ESR |
| Rubber Compounders (rubber goods production) | 328 | CRS |
| Rubber Goods Production Workers | 328 | no code |
| Rubbers (furniture manufacturing) | 373 | RCS |
| Rubber Stamp Makers (pen & pencil industry) | 557 | RSC |
| Rural Carriers (postal service) | 220 | CSE |
| Rural Sociologists | 316 | IES |