Guide to US Air Force Officer Ranks: Types and Definitions

What are US Air Force officer ranks?

An officer rank is an official grade within the military hierarchy. It indicates relative seniority and helps establish command relationships, standards of responsibility and forms of address.

US Air Force commissioned officers may serve in fields such as:

• Aviation

• Space and missile operations

• Intelligence

• Cyber operations

• Engineering

• Logistics

• Maintenance

• Security forces

• Medicine and healthcare

• Law

• Finance

• Acquisition

• Public affairs

• Human resources

Officers generally lead people and resources, apply specialized expertise and support mission planning and execution. The scale of their responsibility tends to increase with rank, but position and experience also matter.

Officer rank vs. pay grade

Rank and pay grade are related but not identical terms.

• Rank is the formal title, such as captain or colonel.

• Pay grade is the standardized code used for compensation and seniority across the US armed forces, such as O-3 or O-6.

• Position is the job or command assignment an officer holds.

For example, an Air Force captain holds pay grade O-3. Base pay also depends on years of service, and total compensation can include allowances or special pays when eligibility requirements are met.

The letter “O” means officer. It is normally written as O-1 through O-10. This should not be confused with a zero.

The three groups of Air Force officers

Company grade officers: O-1 to O-3

Company grade officers include second lieutenants, first lieutenants and captains. They commonly develop technical and leadership experience while managing smaller teams, programs or mission elements.

Field grade officers: O-4 to O-6

Field grade officers include majors, lieutenant colonels and colonels. Their responsibilities often include larger organizations, complex programs, senior staff work and command.

General officers: O-7 to O-10

General officers include brigadier generals, major generals, lieutenant generals and generals. They provide senior leadership across major organizations, commands and joint or national-level missions.

The size and title of an organization do not create a universal rank requirement. Command structures vary by mission and Air Force component.

US Air Force officer ranks in order

Pay grade	Rank	Common abbreviation	Officer group
O-1	Second Lieutenant	2d Lt	Company grade
O-2	First Lieutenant	1st Lt	Company grade
O-3	Captain	Capt	Company grade
O-4	Major	Maj	Field grade
O-5	Lieutenant Colonel	Lt Col	Field grade
O-6	Colonel	Col	Field grade
O-7	Brigadier General	Brig Gen	General officer
O-8	Major General	Maj Gen	General officer
O-9	Lieutenant General	Lt Gen	General officer
O-10	General	Gen	General officer

Official abbreviations may appear without periods in Air Force style. Other publications may format them differently.

Company grade officer ranks

1. Second Lieutenant (O-1)

Second lieutenant is the entry commissioned rank for many new Air Force officers. Officers at this level are learning their career field, unit procedures and the practical responsibilities of military leadership.

Common expectations may include:

• Completing initial occupational training

• Learning the unit mission and standards

• Leading a small team or element under supervision

• Managing an assigned program

• Developing planning, briefing and administrative skills

• Receiving mentorship from experienced officers and noncommissioned officers

A second lieutenant should listen to experienced enlisted leaders while remaining accountable for assigned decisions and duties.

2. First Lieutenant (O-2)

First lieutenants have additional experience and may receive broader operational, technical or supervisory responsibility. They continue developing independent judgment and expertise.

Depending on the career field, a first lieutenant may:

• Lead a section, flight or program

• Plan missions or operational activities

• Train or evaluate junior personnel

• Coordinate resources across functions

• Serve in a specialized professional role

• Prepare for more demanding captain-level assignments

Promotion timing and eligibility are governed by law and military policy, so individual paths can differ.

3. Captain (O-3)

Captains are experienced company grade officers. They may command a flight, lead a department, manage significant resources or perform advanced technical and staff work.

Typical responsibilities can include:

• Leading larger teams or complex programs

• Serving as a flight commander

• Managing readiness, training and performance

• Advising senior leaders within a specialty

• Coordinating operations among units

• Mentoring lieutenants

• Attending professional military education

Some officers spend several years as captains while completing operational qualifications and preparing for field grade responsibility.

Field grade officer ranks

4. Major (O-4)

Major is the first field grade rank. Majors often move from direct small-unit leadership into broader planning, staff coordination and organizational management.

Possible duties include:

• Serving as an operations officer or deputy

• Leading a major program or staff section

• Developing policy and plans

• Coordinating across squadrons or higher headquarters

• Advising commanders

• Managing budgets, personnel and readiness information

• Preparing for squadron-level command opportunities

Majors need to translate senior intent into executable work while helping company grade officers develop.

5. Lieutenant Colonel (O-5)

Lieutenant colonels commonly serve in senior staff, deputy and command positions. A lieutenant colonel may command a squadron, although command rank varies with unit type and mission.

Responsibilities may include:

• Commanding or helping lead a squadron

• Setting priorities for several flights or functions

• Managing significant personnel and resources

• Evaluating readiness and risk

• Advising colonels or general officers

• Representing the unit to external organizations

• Developing subordinate leaders

At this level, officers balance mission performance, long-term capability and responsibility for the welfare and development of their personnel.

6. Colonel (O-6)

Colonels hold senior field grade responsibility. They may command a wing or group, direct a major staff organization or lead an enterprise-level program. Not every colonel commands, and command structures vary.

Common responsibilities include:

• Leading large or strategically important organizations

• Establishing priorities and allocating resources

• Directing several subordinate units

• Advising general officers

• Coordinating with joint, allied or civilian partners

• Managing major acquisition or policy portfolios

• Ensuring mission readiness and accountability

Colonels may work at installation, major command, Air Staff, combatant command or other headquarters levels.

General officer ranks

7. Brigadier General (O-7)

Brigadier general is the first general officer rank and is often described as a one-star rank. These officers may serve as wing commanders, deputies, directors or senior leaders within major organizations.

Their work commonly involves:

• Leading large, complex missions

• Integrating several functional areas

• Advising senior military and civilian officials

• Setting policy and allocating major resources

• Representing the Air Force in joint or international settings

General officer appointments and promotions involve processes beyond the standard progression for company and field grade officers.

8. Major General (O-8)

Major general is commonly called a two-star rank. Officers at this level may command numbered air forces, centers or other large organizations, or hold senior headquarters positions.

Responsibilities can include:

• Directing operations across multiple units or locations

• Overseeing large workforces and budgets

• Developing force-wide policy or capability

• Coordinating with other military services and government agencies

• Advising three- and four-star leaders

The position’s mission determines whether the emphasis is operational command, acquisition, support, policy or another area.

9. Lieutenant General (O-9)

Lieutenant general is a three-star rank. It is associated with specific senior positions and substantial institutional or operational responsibility.

An O-9 may:

• Command a major organization

• Serve as a vice commander or senior headquarters leader

• Direct large operational, training or support enterprises

• Advise national-level leaders

• Represent the Air Force in joint, allied or interagency work

Three-star grades are generally linked to designated positions rather than functioning only as a permanent career milestone.

10. General (O-10)

General is the highest active Air Force officer rank and is commonly called a four-star rank. Generals hold the service’s most senior command and leadership positions.

Potential responsibilities include:

• Leading a major command

• Serving as Chief of Staff of the Air Force

• Holding a senior joint command or staff position

• Advising the Secretary of the Air Force, Secretary of Defense or President

• Establishing strategy and priorities affecting the service or joint force

• Directing global operations and long-term capability development

Only a limited number of O-10 positions exist, and appointments follow federal law and confirmation requirements.

What is General of the Air Force?

General of the Air Force is a special five-star grade associated with wartime use. Henry H. “Hap” Arnold is the only person to have held the title. It is not part of the normal active O-1-to-O-10 progression described above.

Official historical materials may display General of the Air Force separately from the 10 current officer pay grades.

Officer insignia overview

Air Force officer insignia progress from bars to oak leaves, an eagle and stars:

• Second lieutenant: one gold bar

• First lieutenant: one silver bar

• Captain: two connected silver bars

• Major: gold oak leaf

• Lieutenant colonel: silver oak leaf

• Colonel: silver eagle

• Brigadier general: one star

• Major general: two stars

• Lieutenant general: three stars

• General: four stars

Placement and wear depend on the uniform and current regulations. Use official Air Force uniform guidance rather than a general career article when preparing a uniform.

Air Force officer ranks vs. enlisted ranks

Commissioned officer pay grades use O-1 through O-10. Enlisted grades use E-1 through E-9. Enlisted Airmen build deep occupational expertise and lead at every level, while commissioned officers hold distinct legal and command authority.

The relationship is collaborative rather than simply “officers give orders and enlisted personnel follow.” Effective officers depend on the experience and counsel of noncommissioned officers, and senior enlisted leaders advise commanders on readiness, standards and the force.

The Air Force reinstated a limited warrant officer corps in 2024 after decades without one, initially emphasizing specialized technical fields. Warrant officer grades are separate from both the E-1-to-E-9 enlisted structure and the O-1-to-O-10 commissioned officer ranks covered in this article. Because the program is evolving, prospective applicants should confirm current career fields and eligibility through official Air Force sources.

How to become an Air Force officer

Common commissioning pathways include:

US Air Force Academy

The academy provides undergraduate education, military training and a commission for qualified graduates.

Air Force Reserve Officer Training Corps

AFROTC allows students at participating colleges and universities to complete officer training while earning a degree.

Officer Training School

OTS provides a commissioning route for selected applicants who already hold a qualifying college degree. Selection is competitive and needs vary by career field.

Direct commissioning

Some trained professionals, such as physicians, attorneys, chaplains and other specialists, may enter through profession-specific commissioning programs when eligible.

Basic requirements differ by pathway and career. Applicants may need to meet education, citizenship, age, medical, character, testing and security requirements. Use official Air Force recruiting information and speak with an appropriate recruiter for current eligibility details.

How Air Force officer promotions work

Promotion is not based only on time served. Processes vary by grade and component but may consider:

• Eligibility and time requirements

• Performance records

• Professional qualifications

• Education and development

• Leadership potential

• Conduct and standards

• Promotion-board selection

• Available positions or statutory limits

• Senate confirmation for applicable senior appointments

Active Duty, Air Force Reserve and Air National Guard processes can differ. An officer’s career field and assignment history also influence development opportunities.

Does rank determine command?

Rank establishes seniority, but command authority comes from assignment and law. A higher-ranking officer is not automatically the commander of every lower-ranking person encountered.

Organizations may include:

• Element

• Flight

• Squadron

• Group

• Wing

• Numbered air force

• Major command

These structures vary by mission, and some levels may be absent. Titles and typical commander ranks should be treated as general patterns rather than fixed rules.

Air Force officer compensation

Military base pay is determined by pay grade and years of service using current Department of Defense pay tables. Total compensation may also include housing and subsistence allowances, healthcare, retirement benefits, incentive pays or other amounts when eligibility conditions are met.

Two officers at the same rank may receive different total compensation because of years of service, location, dependency status, assignment and specialty. For current estimates, consult official military pay resources rather than relying on an older article.

How to address Air Force officers

In ordinary professional use, officers may be addressed by rank and last name, such as “Captain Rivera” or “Colonel Lee.” “Sir” or “ma’am” is also used according to military customs and the situation.

Written correspondence, ceremonies and reporting procedures can require particular forms. Airmen should follow current customs, courtesies and local guidance.

Why understanding rank matters in civilian employment

Recruiters and hiring managers should not assume that military rank translates directly into one civilian title. A veteran’s experience depends on career field, assignment, scale, technical responsibility and actual accomplishments.

When translating an officer’s background, examine:

• Number and types of people led

• Budget or equipment responsibility

• Operational environment

• Technical specialty

• Planning and decision authority

• Projects and measurable outcomes

• Joint, international or cross-functional coordination

• Training, certifications and education

Likewise, veterans can explain military terms in plain language and focus on outcomes relevant to the civilian role.

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Dokie also supports slide-level revisions, consistent visual themes and PowerPoint export, making it easier to explain one rank, assignment or transferable skill while preserving the complete narrative. Users should verify official terminology, remove controlled or sensitive information and follow applicable security and public-release requirements before sharing any presentation.

Frequently asked questions

What are the US Air Force officer ranks in order?

They are second lieutenant, first lieutenant, captain, major, lieutenant colonel, colonel, brigadier general, major general, lieutenant general and general, corresponding to O-1 through O-10.

What are the three types of Air Force officers?

The broad groups are company grade officers at O-1 through O-3, field grade officers at O-4 through O-6 and general officers at O-7 through O-10.

Is captain a high rank in the Air Force?

Captain is O-3 and the highest company grade rank. Captains can hold significant leadership and technical responsibility, but majors through generals are senior in rank.

What is the difference between rank and pay grade?

Rank is the title, such as major. Pay grade is the standardized compensation code, such as O-4. Position describes the actual job or command assignment.

What is the highest Air Force officer rank?

General at O-10 is the highest active rank. General of the Air Force is a special five-star wartime grade and is not part of the normal active progression.

Does every Air Force officer become a pilot?

No. Officers serve in many operational, technical, medical, legal, engineering, cyber, intelligence and support careers. Pilot is one commissioned career path among many.

How can someone become an Air Force officer?

Common routes include the US Air Force Academy, AFROTC, Officer Training School and certain direct-commission programs. Eligibility and selection requirements vary, so applicants should use current official recruiting guidance.