Occupational Title | Brief Number | HOC Code |
| Hairdressers (cosmetologists) | 7 | no code |
| Hairstylists (cosmetologists) | 7 | SER |
| Hairstylists (stage production technical staff) | 675 | SER |
| Hammersmiths (forge shop) | 352 | REI |
| Hand Peelers (canning & preserving) | 389 | REC |
| Hand Rubbers (furniture manufacturing) | 373 | RCS |
| Hand Sanders (furniture manufacturing) | 373 | REC |
| Hand Sewers (apparel industry) | 35 | CRE |
| Handwriting Analysts | 618 | ACS |
| Hangers (poultry industry) | 248 | no code |
| Harbor Patrol Officers | 4 | SER |
| Hatchery Managers (fish farm) | 190 | ESA |
| Hatchery Owners (poultry industry) | 248 | ESR |
| Hatchery Supervisors (poultry industry) | 248 | ESR |
| Hatchery Workers (poultry industry) | 248 | ECR |
| Hatch Supervisors (longshore) | 484 | ESR |
| Hazardous Materials Removal Workers | 566 | no code |
| Hazardous Waste Management Specialists | 537 | ESI |
| Hazmat Workers | 566 | no code |
| Head End Technicians | 244 | RIE |
| Head Nurses (registered professional) | 75 | SEI |
| Head Sawyers (sawmill) | 441 | RIE |
| Head Tellers | 73 | CSE |
| Health Club Fitness Workers | 282 | no code |
| Health Club Managers (fitness) | 282 | ESR |
| Health Information Coding Specialists | 681 | CIR |
| Health Information Technicians | 681 | CIR |
| Health Physicists | 493 | IRE |
| Health Physics Technicians (health physicists) | 493 | RCS |
| Health Promotion Specialists | 518 | SEA |
| Health Psychologists | 144 | SIA |
| Health Sciences Librarians | 9 | SEC |
| Health Services Administrators | 121 | SER |
| Hearing Aid Specialists | 671 | ESR |
| Hearing Instrument Dispensing Specialists | 671 | ESR, SRC |
| Heaters (forge shop) | 352 | RIE |
| Heating and Air-Conditioning Technicians (heating & cooling) | 225 | RES |
| Heavy-Duty Truck Drivers | 42 | RCS |
| Helicopter Patrol Officers | 4 | SER |
| Helicopter Pilots | 538 | RIS |
| Helmsmen (merchant mariners) | 379 | CRE |
| Help-Desk Technicians | 482 | SER |
| Hematopathologists | 230 | IRE |
| Hemodialysis Technicians | 528 | ISC |
| Hide Inspectors (leather tanning & finishing) | 297 | RSE |
| Hide Pullers (slaughtering & meat-packing production) | 423 | REI |
| Hide Trimmers (slaughtering & meat-packing production) | 423 | RES |
| High Divers (circus performers) | 251 | ESR |
| High School Counselors | 145 | SAE |
| Highway Maintenance Workers | 234 | RCS |
| Histologic Technicians | 227 | IRE |
| Historians | 345 | SEI |
| Historical Archaeologists | 343 | IRE |
| Histotechnicians | 227 | IRE |
| Histotechnologists | 227 | IRE |
| HIV/AIDS Counselors | 503 | ESA |
| Hoist and Winch Operators (construction equipment) | 171 | RCS |
| Holographic Technicians | 415 | IRE |
| Home Builders | 183 | EIR |
| Home Health Aides | 505 | SER |
| Home Health Aides (temporary workers) | 674 | SER |
| Home Health Nurses (registered professional) | 75 | ISR |
| Home Inspectors | 385 | CIE |
| Homeopathic Practitioners (naturopathic physicians) | 624 | SIR |
| Homeopaths (naturopathic physicians) | 624 | SIR |
| Horse Identifiers (racetrack workers) | 629 | ERS |
| Horseshoers | 151 | RSE |
| Horse Trainers | 508 | RES, SEC |
| Horticultural Consultants | 203 | IRS |
| Horticulturists | 203 | IRS |
| Horticulturists, Urban | 203 | IRS |
| Hospice Administrators | 611 | SER |
| Hospital Admitting Clerks | 448 | ECS |
| Hospital Admitting Managers | 448 | ESA |
| Hospital Attendants | 407 | SRE |
| Hospital Food Service Supervisors | 33 | ESR |
| Hot Metal Crane Operators (iron & steel industry) | 305 | RCS |
| Household Goods Movers | 349 | REI, RES |
| Household Managers (household service) | 232 | ESR |
| Household Service Workers | 232 | no code |
| Housekeepers, Executive | 358 | ECR |
| Housekeepers (executive) | 358 | CRE |
| Housekeepers, Executive (lodging) | 350 | ECR |
| Housekeepers (household service) | 232 | RSE |
| House Managers (theatrical production) | 612 | ESR |
| Human Cannonballs (circus performers) | 251 | ESR |
| Human Intelligence Workers | 626 | AES, ERS |
| Human Resources Assistants (human resources managers) | 258 | no code |
| Human Resources Managers | 258 | SEC |
| Humorists (creative writers) | 606 | ASE |
| Hunting and Fishing Guides | 354 | RES |
| Hunting Guides | 354 | RES |
| Hydraulics Engineers (civil) | 156 | IRE, IRS |
| Hydrologists | 364 | IRE |
| Hydrologists (geologists) | 129 | IRE |
| Hydrologists (geophysicists) | 148 | IRE |
| Hygienists, Dental | 18 | SAI |
| Hygienists, Industrial | 461 | IRE |