TL;DR: BS Geology is a four-year degree governed by CHED Memorandum Order No. 35, series of 2008, with a prescribed minimum of 139 units (142 with the optional thesis), of which 66 units are geology courses. Yes, there is a board exam. Geology is one of the Professional Regulation Commission's 46 Professional Regulatory Boards, and the Geologist Licensure Examination is governed by Republic Act No. 10166, the Geology Profession Act of 2012. The law sets the exam subjects at General Geology, Petrology and Mineralogy, and Applied Geology, and requires a general weighted average of at least 70% with no subject below 50%. Without a licence, you may not legally practise geology.
Why the Licence Is the Point of This Degree
Plenty of science degrees leave you unlicensed and unregulated. Geology does not. RA 10166 defines the practice of geology as offering or rendering the services of any specialised branch of geology, whether for a fee or not, and Section 30 states plainly that no person shall practise geology or render geological service without a valid certificate of registration and a valid professional identification card, or a temporary or special permit.
That single provision shapes everything downstream: mining companies, energy firms, engineering consultancies and government agencies need signatures from registered geologists, and that is where the salaried demand sits. If you want the general comparison, our list of courses with board exams shows which Philippine degrees carry a PRC licence and which do not.
One thing to note if you go looking yourself: PRC's own Professional Regulatory Board of Geology page still refers to Republic Act No. 4209, the older Geology Profession Law of 1965. RA 10166, enacted in 2012, expressly repealed RA 4209. Treat RA 10166 as the operative law and PRC's board page as the place to find current Board resolutions, not the current statute.
The Geologist Licensure Examination
| Item | What the law says |
|---|---|
| Governing law | Republic Act No. 10166, Geology Profession Act of 2012 |
| Administering body | Professional Regulatory Board of Geology, under PRC |
| Degree required | BS Geology, BS Geological Engineering, MS Geology, or equivalent (Sec. 17) |
| Subjects | General Geology; Petrology and Mineralogy; Applied Geology (Sec. 16) |
| Passing standard | General weighted average of at least 70%, with no subject below 50% (Sec. 19) |
| Frequency | At least once a year, on dates and in places PRC designates |
Applicants must also be Filipino citizens, or citizens of a country that grants reciprocity, and must be of good moral character with no conviction for an offence involving moral turpitude.
The Board is authorised to revise or add examination subjects, and it has issued enhanced tables of specifications setting out coverage under each subject. Those tables, not this article, are the source to study against.
On schedules: PRC publishes the examination calendar and the filing window for each cycle on its own site, and the dates move. We do not publish next cycle's dates, and neither should any reviewer who has not seen the official announcement. For the general filing mechanics, see our guide to PRC board exam requirements, and for results, how to check PRC results explains the official route.
What You Actually Study
CHED Memorandum Order No. 35, series of 2008, adopted by Commission en banc Resolution No. 275-2008 dated 02 June 2008, is the Policies and Standards for the BS Geology programme. UP Diliman's National Institute of Geological Sciences states that its BS Geology programme is aligned and consistent with this memorandum order, which is a useful confirmation that the 2008 PSG is still what schools build against.
| Component | Units |
|---|---|
| General Education courses | 51 |
| Science and Mathematics | 18 |
| Geology courses (required 45 + electives 21) | 66 |
| Other required non-geology courses | 4 |
| Undergraduate thesis (optional) | (3) |
| Total | 139 (142) |
An important caveat on that General Education number. CMO No. 35 was issued in 2008 and points General Education at CHED Memorandum No. 04, series of 1997, the old 51-unit GEC-B framework. CHED's current General Education curriculum, which came with the K-to-12 transition, is a different and smaller block. So the 139-unit figure is the 2008 prescription, and the number of units you will actually carry at a given school today will not match it. Ask the department for its current curriculum checklist rather than assuming.
The 15 required geology courses
CMO No. 35 names them, each at least 3 units:
- Principles of Geology
- Mineralogy
- Petrology
- Stratigraphy and Historical Geology
- Structural Geology and Tectonics
- Geomorphology
- Paleontology
- Geochemistry
- Geophysics
- Resource Geology
- Geology of the Philippines and Southeast Asia
- Computer Applications in Geology
- Field Geology
- Seminar in Geology
- Geology, Mining and Environmental Laws, Energy Policies and Ethics
The science and mathematics block behind these is analytic geometry, differential and integral calculus, physics through quantum mechanics and thermodynamics, inorganic and analytical chemistry, and a biology course.
Electives (21 units)
CHED's suggested geology electives run to applied geochemistry, applied geophysics, environmental geology, geodynamics and tectonics, geohazards, geostatistics, engineering geology, geothermal resources, hydrogeology, igneous and metamorphic petrology, marine geology, metalliferous and non-metalliferous ore deposits, micropaleontology, mineral economics, mineral resources of the Philippines, mining geology, optical mineralogy, ore microscopy, petrography, petroleum geology, photogeology and remote sensing, quaternary geology, sedimentary petrology, sedimentology, seismology, urban geology and volcanology.
A rule worth knowing: no more than two elective courses (6 units) may be taken from the non-geology list, which includes fluid mechanics, materials science, economics, business management, statistics, marine science, organic chemistry and physical chemistry.
The four non-geology units
Engineering Drawing and Surveying Methods, at least 2 units each. CHED's reasoning is that these give you the basic cartographic and geodetic skills the work requires. If surveying interests you more than rocks, that is a separate licensed profession entirely — see our geodetic engineering board exam guide.
Field Geology: The Part That Defines the Degree
CHED's sample programme of study places Field Geology as a 6-unit summer course after third year. It is not a field trip. The order is explicit that geology "aims to produce professionals capable of doing fieldwork," which is why it treats the undergraduate thesis as optional while keeping Field Geology in the required list.
Section 14 of the CMO allows two optional 3-unit courses to be offered as an alternative to Field Geology: an apprenticeship, internship or OJT in industry or government, or an undergraduate thesis. Where an OJT substitutes, CHED expects the tasks to apply concepts from at least four of the required geology courses, naming structural geology and tectonics, petrology, geophysics, geochemistry and resource geology as examples, with reports required. The school chooses which mode it implements based on its resources and partnerships.
What CHED Requires of the School
These are worth checking before you enrol, because they bear directly on whether you will be taught by licensed practitioners:
- All courses covered by the geology licensure examination must be taught by holders of valid certificates of registration and valid professional licences in geology or an allied programme.
- At least 50% of the geology courses must be handled by faculty with at least a master's degree in geology or an allied programme.
- The institution must keep 50% of the faculty teaching in the BS Geology programme as full-time in a given term.
- The department chair must hold a master's degree in geology or an allied programme, and a valid certificate of registration and licence where applicable.
Careers After BS Geology
The licensed nature of the field means the career map is fairly concrete:
- Mineral exploration and mining — resource geology, ore deposits, mine geology, resource estimation.
- Energy — geothermal, petroleum and increasingly subsurface work tied to energy transition projects.
- Water resources — hydrogeology, groundwater assessment for utilities, agriculture and industry.
- Engineering and construction — engineering geology and geotechnical site characterisation for infrastructure.
- Hazards and government science — volcano and earthquake monitoring, landslide and geohazard mapping, mineral resources administration, and environmental regulation.
- Academia and research — where a master's or doctorate becomes the practical entry requirement.
We are not publishing a salary figure for geologists here, because there is no Philippine wage series specific to the occupation that we can cite with confidence. What is reliably true is that the licence, plus field and software competence, is what separates candidates early on.
Where to Study It
BS Geology is offered by a small number of Philippine schools, which is normal for a licensed science with heavy laboratory and field requirements. UP Diliman, through its National Institute of Geological Sciences, describes its BS Geology as the most well-rounded study of earth sciences in the country, and admits freshmen through the UPCAT with BS Geology named as a first or second course choice at Diliman; shiftees and transferees apply through the College of Science, with a limited number admitted. Our UPCAT guide covers that application route.
Before committing anywhere else, confirm two things: that the school currently holds CHED authority for BS Geology specifically, and that the faculty teaching the licensure-relevant courses are licensed geologists, as the CMO requires. Senior high school students aiming here should be in the STEM strand; the mathematics and physics load in the first two years is not negotiable.
Ready to compare schools? Browse schools on SchoolFinderPH to see programmes and locations across the country.
Sources
- Commission on Higher Education — CMO No. 35, series of 2008, Policies and Standards for Bachelor of Science in Geology (BS Geology) Program
- Republic Act No. 10166 — Geology Profession Act of 2012 (LawPhil)
- Professional Regulation Commission — Professional Regulatory Boards
- Professional Regulation Commission — Professional Regulatory Board of Geology
- UP Diliman National Institute of Geological Sciences — Undergraduate programme
- SchoolFinderPH — Courses with Board Exams
- SchoolFinderPH — PRC Board Exam Requirements
