Geoscientist: bachelor's in geoscience, ASBOG exams and a state license in most states
Geoscientists typically need a bachelor's degree in geoscience; some jobs prefer a master's. Most geoscientists need a state-issued license: 30 states and Puerto Rico license geologists, usually through the two ASBOG exams (Fundamentals of Geology and Practice of Geology) plus years of experience.
For: Curious students who like rocks, maps, field trips and solving earth-science puzzles.
Route 1: Bachelor's in geoscience → geoscientist Typical
Programs include mineralogy, geology, math and engineering, with geology fieldwork; internships help.
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Start here
High school: science and math
BLS
Geoscientists — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
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About 4 years
Bachelor's in geoscience, physical science or natural resources
BLS
Geoscientists — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
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Optional
Master's or doctorate
More specialization and research; may be more competitive for some jobs.
BLS
Geoscientists — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
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Goal
Entry-level geoscientist
BLS
Geoscientists — Summary (Quick Facts)U.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
Route 2: Professional Geologist (P.G.) license To offer services to the public
Most states require licensing for geologists who offer services to the public, such as for civil engineering projects, environmental protection and regulatory compliance.
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Start here
Four-year degree with 30 semester hours of geoscience
Texas's rule for the FG exam; each state board sets its own.
TBPG
Exam InformationTexas Board of Professional Geoscientists- Checked
- 21 Oct 2026
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Exam gate
ASBOG Fundamentals of Geology (FG)
4 hours, computer-based at Prometric centers. In Texas, passing it can lead to Geoscientist-in-Training (GIT) certification.
ASBOG
Examination dates and schedules (FG and PG)National Association of State Boards of Geology (ASBOG)- Checked
- 21 Oct 2026
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About 5 years
Qualifying work experience
TBPG
Exam InformationTexas Board of Professional Geoscientists- Checked
- 21 Oct 2026
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Exam gate
ASBOG Practice of Geology (PG)
4 hours; FG and PG can be taken on the same day.
ASBOG
Examination dates and schedules (FG and PG)National Association of State Boards of Geology (ASBOG)- Checked
- 21 Oct 2026
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Goal
State geologist license
ASBOG writes the exams but licenses no one: you apply to your state board.
ASBOG
LicensureNational Association of State Boards of Geology (ASBOG)- Checked
- 21 Oct 2026
- Exam dates
- Twice a year: 2027 spring session 18–19 March, fall session 30 September–1 October; boards set their own deadlines, typically 60 to 90 days before.
ASBOG
Examination dates and schedules (FG and PG)National Association of State Boards of Geology (ASBOG)- Checked
- 21 Oct 2026
Licenses, registrations and certifications
Each one is marked: a state or federal license is the law, a registration through an employer comes with the job, and a voluntary certification is one employers may ask for.
- State geologist license (P.G.)
State licensing board · State license - Applicants typically meet education and experience minimums and pass an exam.
BLS
Geoscientists — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
State licensing matrix
30 states and Puerto Rico require professional licensing or registration for geologists. One state's rule, from its own board:
| State or city | What you need |
|---|---|
| Texas Texas Board of Professional Geoscientists (TBPG) |
ASBOG FG and PG for the geology discipline. FG: a four-year degree with 30 semester (45 quarter) hours of geoscience. PG: the FG passed plus 5 years of qualifying work experience (or within 6 months of it), with a P.G. application on file. Geophysics applicants take the Texas Geophysics Examination. TBPGExam InformationTexas Board of Professional Geoscientists
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Where to go next
Every career page in this cluster: entry, license, BLS pay and outlook.
What the job is, BLS pay and job outlook, and how to become one.