CaliforniaGeologist License Requirements

Professional geologists must hold a minimum of a bachelor's degree in geology, geological engineering, geophysics, or a closely related geoscience field from an accredited institution. A graduate degree may reduce the professional experience requirement by one to two years in most states.

Most states require 3-5 years of professional geological experience working under the supervision of a licensed Professional Geologist. Qualifying experience includes geological mapping, environmental site assessments, hydrogeological studies, geotechnical investigations, and mineral exploration. A graduate degree may substitute for 1-2 years of experience.

Additional Notes

California requires a bachelor's degree in geology or related geoscience for PG licensure.

Approximately 33 states require licensure for professional geologists. States that do not require licensure include Alaska, Colorado, Connecticut, Hawaii, Iowa, Louisiana, Maryland, Massachusetts, Michigan, Nevada, New York, Rhode Island, South Dakota, Vermont, and West Virginia. Even in non-licensing states, ASBOG certification may be required by employers or for government contracts.

Professional geologists practice in areas including environmental site assessment, hydrogeology and groundwater studies, engineering geology, mining and mineral resource evaluation, geotechnical investigations, and geological hazard assessment. Some states offer specialty certifications in engineering geology or hydrogeology.

PDH Details

No continuing education currently required

Regulatory Board

Professional Geologist licenses must be renewed on schedule with the state licensing board. Most states require Professional Development Hours (PDH) or Continuing Education Units (CEU) in geology, environmental science, hydrogeology, or related technical topics. Requirements typically range from 15-32 hours per renewal cycle.

Reciprocity Requirements

• •Active PG license in good standing in another state
• •Passage of both ASBOG FG and PG examinations
• •Bachelor's degree or higher in geology or related geoscience
• •5 years of qualifying professional geological experience
• •Pass California state-specific supplemental examination
• •Submit comity/endorsement application to the California Board for Professional Engineers, Land Surveyors, and Geologists

Most states that license geologists offer comity or endorsement for PG-licensed geologists from other states. Requirements typically include verification of current PG license, passage of both ASBOG exams, meeting education and experience requirements, and completing a background check. Some states may require a state-specific exam.