Duties
The Incumbent serves as Chief, Division of Visitor and Resource Protection (Chief Ranger), at Big Thicket National Preserve. The position is located at Preserve Headquarters north of Kountze, Texas, and reports directly to the Superintendent. The Chief Ranger Is responsible for organizing, planning, directing, coordination, administration of law enforcement and visitor protection activities. The Preserve contains more than 113,000 acres, divided into nine widely separated land units and six water corridors, totaling approximately 267 miles of waterways. Preserve management units encompassing more than 600 miles of boundaries are situated in seven counties in southeast Texas and are dispersed over an area of 3,600 square miles. As one of the first two National Preserves in the National Park System. Big Thicket was established "to assure the preservation of numerous representative areas typical of the Big Thicket Region, and to protect and preserve the natural values which make this 'biological crossroads' unique In the United States.
Some of the major duties you will perform include but are not limited to the following:
- The incumbent serves as Chief Ranger. As the chief of the division, the incumbent is responsible for planning, directing, and executing all park programs dealing with visitor and resource protection. The incumbent is the principal advisor to the Superintendent relative to visitor and resource protection issues and assists the Superintendent with a variety of park management assignments.
- Directly supervises one GS-11 Supervisory Protection Ranger, one GS-9 Park Ranger (Protection).
- Plans work schedules and sequences of operations on a long-range basis. Revises work schedules and goals to meet changes in workload, and assures coordination of work schedules and operations among subordinate units and with other divisions when activities affect the whole park.
- Reviews resource requirements data and other material for proper determination of what staffing, equipment, space requirement, materials and other resources are needed to accomplish the mission of the division. Adjusts figures based on overall determination of needs.
Requirements
Conditions of employment
- Must provide proof of U.S. citizenship.
- Appointment subject to background investigation and favorable adjudication.
- Males born after 12-31-59 must be registered for Selective Service.
- Direct Deposit participation required.
- Successfully pass the E-Verify employment verification check. To learn more, visit https://www.e-verify.gov/.
- Must possess and maintain a valid driver's license throughout employment..
- Pre-employment and random drug testing is required. You will not be appointed to the position if a verified positive drug test is received.
- A physical examination will be required, or a statement regarding physical ability will need to be completed. You must maintain physical fitness standards throughout employment.
- You are required to wear a uniform and comply with uniform standards. A uniform allowance will be provided.
- You are required to complete training, obtain and maintain a government credit card with travel and purchase authority.
- A financial disclosure report will be required within 30 days of appointment.
- Firearm qualification and certification are required for the role, and ongoing proficiency must be maintained
- You must at least 21 years old. You must be free of any domestic violence convictions.
- Prior to appointment, you must be determined physically fit by an authorized physician to perform strenuous and physically demanding duties, pass a medical examination, and pass the Physical Efficiency Battery (PEB). The PEB is a fitness test consisting of five different components: 1) agility run - measures the ability to get up from the ground and sprint while changing directions; 2) bench press - measures upper body strength for one repetition; 3) 1.5 mile run - measures cardio/respiratory fitness; 4) sit and reach - measures flexibility in the lower back, legs and shoulders; and 5) body composition - measures body fat. Prior to appointment, selectees will be tested in all five components, and must pass the agility run, bench press and 1.5 mile run in the 25th percentile.
*Additional Requirements located under Qualifications*
Qualifications
Requirements Continued
Probationary Period: As a condition of employment for accepting this position, you may be required to serve a 1 year probationary period to evaluate your fitness and whether your continuation of employment advances the public interest.
This probationary period is an extension of the appointment process and therefore requires the agency to determine if continued employment would advance the public interest, meet the organization goals and mission of the agency, and/or otherwise promote the efficiency of the service. In determining if your employment advances the public interest, the agency will consider: your performance and conduct; the needs and interests of the agency; whether your continued employment would advance organizational goals of the agency or the Government; and whether your continued employment would advance the efficiency of the Federal service.
Under applicable law, the employment of an individual serving a probationary or trial period automatically terminates when that period ends unless the agency affirmatively certifies, in writing, that the individual's employment should continue and that their appointment should be finalized. In the absence of agency action to affirmatively certify continued employment beyond the probationary or trial period, such appointments are terminated. Upon completion of your probationary period your employment will be terminated unless you receive certification, in writing, that your continued employment advances the public interest.
This is a supervisory position that may require completion of a supervisory probationary period.
Qualifications:
All qualifications must be met by the closing date of this announcement - 08/10/2026-unless otherwise stated in this vacancy announcement. Competitive candidates must also meet Time-in-Grade requirements as defined in 5 CFR 300, Subpart F.
For current Federal employees, if hours worked per week are not included on your resume, you must submit a non-award SF-50 as part of your application to be used to validate your work schedule and determine the amount of specialized experience that you will be granted.
An award SF-50 will not be acceptable documentation for which to consider your amount of qualifying experience. For periods of time that reflect military service, the DD-214 or Statement of Service is sufficient to meet the work schedule requirement as the service dates will be reflected. For all other applicants who are not current federal employees, your resume
MUST state either "full-time" (or "40 hours a week") or "part-time" with the number of hours worked per week to ensure proper crediting of specialized experience.
Selective Placement Factors: This position requires a special qualification that has been determined to be essential to perform the duties and will be used as a screen out element. If you do not provide evidence that you possess the following selective factor(s), you will be rated not qualified.
- Applicants must be at least 21 years of age.
- Must currently possess or previously held (within the past three years) a valid type 1 National Park service Law Enforcement Commission. or equivalent, by 08/10/2026. More information can be found in the 'Education' section of this job announcement.
- This is a covered secondary law enforcement position under the special retirement provisions of 5 U.S. C. 8336(c) (CSRS) and 8412(d) (FERS). In addition to the qualifying experience and/or education described above, applicants for this position must possess experience gained by substantial service in a primary law enforcement position or equivalent.
- Must have a current, valid State Driver's License by 08/10/2026.
-AND-
Minimum Qualification Requirements: To qualify for this position, you must meet the following minimum qualifications:.
To qualify for this position at the GS-12 grade level:
Experience: To qualify, you must possess at least one year of specialized experience comparable in scope and responsibility to the GS-11 grade level in the Federal service (obtained in either the public or private sectors). This experience includes: law enforcement or investigative work; investigating, apprehending, detaining or prosecuting individuals suspected of or convicted of crimes against the United States; protecting officials against threats to personal safety; management, assistant, or program specialist work involving the development and implementation of policy related to protection, conservation, or management of park areas or similar operations; or other similar work.
Volunteer Experience: Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional; philanthropic; religious; spiritual; community, student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience.
Education
Law Enforcement Commission: Must currently possess or previously held (within the past three years), a FLETC issued Land Management Police Training, full Type I Law Enforcement Commission or equivalent; or be qualified to receive a Type I Law Enforcement Commission upon appointment.
This position does not allow substituting education for experience.
Additional information
Additional vacancies may be filled using this job announcement.
All Department of the Interior (DOI) employees, their spouses, and minor children may not acquire or retain any claim, permit, lease, small tract entry, or other rights granted by the Department in Federal lands, with limited exceptions. Additional ethics prohibitions can be found here, DOI Ethics Prohibitions | U.S. Department of the Interior.
Physical Demands: Work assignments will Involve periods of low activity and sitting Interrupted by sudden periods of high intensity and very physical activity. The incumbent's primary responsibility as a law enforcement officer, with arrest authority, requires peak physical condition and the ability to operate under adverse climatic conditions as well as under stressful confrontational situations. This position Is subject to Departmental and Service standard physical requirements, Physical Efficiency Battery (PEB), for commissioned law enforcement officers.
Work Environment: Most work Is sedentary and fs accomplished In an office setting, ·with prolonged periods of computer work. Field work and supervision outside of the office are required to maintain communication with others and keeping knowledge of field operations. The field environment Involves exposure to high heatt high humidity during a large part of the year and windy, humid, or cold weather for a period of 1-3 months. Other conditions include exposure to dangerous large alligators/reptiles, aggressive mammals, poisonous snakes, poisonous insects, end poisonous plants.
The duties of this position are suitable for telework only during an emergency or natural disaster.
You may be required to work on-call, evenings, weekends, holidays, overtime and shift work.
You may be required to travel overnight away from home up to 25% per month. You must obtain a government charge card for travel purposes.
First time hires to the Federal government normally start at the step 1 rate.
Applicants who include vulgar, offensive, or inappropriate language or information in their application package will be ineligible for further consideration for this position.
Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution.
A career with the U.S. government provides employees with a comprehensive benefits package. As a federal employee, you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Opens in a new windowLearn more about federal benefits.
This is a secondary-administrative law enforcement position under the special retirement provisions of 5 U.S. C. 8336 (c) (CSRS) and 5 U. S. C. 8412 (d) (FERS). Applicants may meet qualification requirements, but may not be eligible for special retirement coverage. If such an applicant is selected, they will be placed in the regular retirement system. To be eligible for Secondary retirement coverage under CSRS, an employee must transfer directly (without a break in service exceeding 3 days) from a primary position to a secondary position. To be eligible for Secondary retirement coverage under FERS, an employee must: 1) transfer directly (without a break in service exceeding 3 days) from a primary position to a secondary position, AND 2) complete 3 years of service in a primary rigorous position including any such service during which no FERS deductions were withheld, AND 3) must be continuously employed in a secondary position(s) since moving from a primary rigorous position, except for any break in employment from a secondary position that began with involuntary separation (not for cause). It is the responsibility of the applicant to ensure this office has enough information to determine your special retirement status to ensure you do not lose benefits (normally through submission of your work history or other documentation that demonstrates work history of approved covered positions). You must let this office know if you are in a Primary position.
Review our benefits
Eligibility for benefits depends on the type of position you hold and whether your position is full-time, part-time or intermittent. Contact the hiring agency for more information on the specific benefits offered.
How you will be evaluated
You will be evaluated for this job based on how well you meet the qualifications above.
Your qualifications will be evaluated based on your application materials (e.g. resume, supporting documents), the responses you provide on the application questionnaire, and the result of the additional assessment(s) required for this position.
Your resume must not exceed 2 pages. Only the document submitted as the "Resume" under the Documents section will be used to determine your qualifications/eligibility and for rating purposes. In the event you submit more than one resume, only the latest submission will be reviewed.
You will be assessed in the following competencies (knowledge, skills, abilities, and other characteristics):
- Administration and Management
- Financial Management
- Leadership
- Partnering
- Public Safety and Security
All qualified non-competitive applicants and the best-qualified Merit Promotion applicants will be referred to the hiring manager for consideration.
DUE WEIGHT: Please submit 1) a copy of your
most recent performance appraisal/evaluation
dated within the last 18 months and 2) a list of any awards (e.g. superior performance awards, special act or achievement awards, quality step increase, etc.) you received in the last 5 years. Any performance appraisal/evaluation and award documentation you provide will be forwarded to the selecting official. The selecting official will review this documentation and give it due weight consideration during the overall selection process. If you do not have your most recent performance appraisal/evaluation, you must submit a statement as to why it is not available. Please indicate if any prior performance appraisals/evaluations were at an acceptable level.
Overstating your qualifications and/or experience in your application materials or application questionnaire may result in your removal from consideration or your score may be lowered. Cheating on an assessment may also result in your removal from consideration.
Current surplus and current or former displaced Federal individuals who have special priority selection rights under the Agency Career Transition Assistance Program (CTAP) or the Interagency Career Transition Assistance Program (ICTAP) must be well qualified for the position to receive consideration for special priority selection. Well qualified means that the applicant meets the following: OPM qualification standards for the position; all selective placement factors, where applicable; special qualifying conditions that OPM has approved for the position, where applicable; is physically qualified with reasonable accommodation, where appropriate to satisfactorily perform the duties of the position upon entry; and is rated by the organization at least at the well qualified level.