Level 2 HPR Certification Procedures

HPR Certification paperwork should not be mailed or emailed to NAR Headquarters.
Please do not contact NAR Headquarters regarding HPR Certification questions and issues.
All HPR Certification process questions should be directed to HPRCertifications@nar.org.

The NAR was created in 1957 as an advocate of the model rocketry hobby. Over the past four decades the hobby has grown to encompass rocket motor types and performance unavailable to the modeler at the NAR’s inception. In response to this growth the NAR offers a certification process which permits individuals to purchase and use rocket motors whose physical constraints and performance exceed traditional model rocket boundaries. Rocket motors which exceed model rocketry motor definitions and the models that use these motors are collectively referred to as high power rocketry. Certification for high power rocketry consists of three progressive levels:

  • Level 1 allows the purchase and use of H and I impulse class motors; solid and hybrid. Certain F and G motors may also require Level 1 certification for purchase and use.
  • Level 2 allows the purchase and use of J, K, and L impulse class motors; solid and hybrid.
  • Level 3 certification allows the purchase and use of M, N, and O impulse class rocket motors; solid and hybrid.

The procedures for Level 2 certification are documented below. Level 2 certification requires that you hold a valid Level 1 certification before applying. You can examine the HPR Level 1 Certification Procedures for more information. You can also review the HPR Level 2 Study Guide. Level 3 certification requires in-process reviews of the certification model’s design and construction prior to flight. Level 3 certification is covered in an application separate from the Level 1 and Level 2 paperwork. Please note that the NAR high power certification is only one consideration when purchasing and using high power rocket motors. Compliance with local and state laws as well as federal regulations (e.g., FAA FAR Part 101, NFPA 1127, etc.) is also required. High Power certification is intended to provide a measure of the modeler’s competence to avoid gross violations of good modeling practice and safe model operation. The program is not foolproof. A single demonstration of a modeler’s skills does not guarantee consistent safe performance. The certification program does not replace competent range personnel (note that high power range safety officers will require high power certification per NFPA 1127) to provide assurance of safe models and operating practices.

Questions about any of the below content should be directed to the HPR Services Chairman.

  1. Minimum Requirements
    1. The Level 2 High Power Certification Candidate must be a minimum of 18 years old at the time of certification. A copy of a government-issued identification can be used for proof of age.
    2. The Level 2 High Power Certification Candidate must be a member in good standing of the National Association of Rocketry (NAR). Evidence of NAR membership will be requested prior to the certification attempt. Acceptable evidence of membership includes but is not limited to the NAR membership card, a canceled check or email receipt indicating payment of membership fees, or participation in a NAR event where membership status is verified and indicated on the event materials.
    3. The Level 2 High Power Certification Candidate must currently hold a Level 1 High Power Certification, as identified on their NAR membership card or a completed NAR HPR Level 1 Temporary Certification card.
    4. Although not required, the general expectation is that a member will gain experience with additional Level 1 flights prior to attempting Level 2 certification, as noted under “How Do I Get Started in High Power Rocketry” on the main HPR page. This could include building several L1-capable rockets and multiple flights on H and I motors. A HPR flight log will help Certification Teams in evaluating a member’s experience level prior to attempting a Level 2 certification flight.
    5. The Level 2 High Power Certification Candidate must take and pass a HPR Level 2 Written Exam prior to their Level 2 certification flight attempt. The HPR Level 2 Written Exam will help demonstrate their knowledge of the laws and regulations pertaining to high power rocketry. Questions concerning basic rocket technical knowledge, e.g., center of pressure and center of gravity relationships, are also included on the exam.
    6. Motors used for certification flight attempts must be currently certified by the NAR, or by another organization (e.g., Tripoli) with a recognized certification program.
    7. NOTE: These procedures do not supersede any requirements imposed by the authorities having jurisdiction. Other requirements may be imposed by state, or non-USA authorities.
  2. NAR HPR Level 2 Written Exam
    1. NAR HPR Level 2 Written Exams shall be administered by one of the following:
      1. A Level 2 or Level 3-certified NAR member, who is also a NAR Section officer (President, Vice President, Secretary, Treasurer, or Section Advisor).
      2. A designated Section Member who is Level 2 or Level 3-certified.
      3. A NAR L3CC member.
    2. Requests to take the NAR HPR Level 2 Written Exam shall be made by the Level 2 High Power Certification Candidate to one of the above qualified administrators.
      1. A map of NAR Sections can be found on the NAR website HERE.
      2. A list of current NAR L3CC members can be found on the NAR website HERE.
    3. The examination contains 40 questions in the multiple choice and true/false format.
    4. The exam questions come from a 100 question pool found in the NAR HPR Level 2 Written Exam Study Guide.
    5. In addition to the Study Guide, there are HPR Level 2 Online Practice Exams:
      1. Section A – Applicable Regulations
      2. Section B – Rocket Motor Designations
      3. Section C – Range and Safety Practices
      4. Section D – Rocket Stability
    6. The passing grade is ~87%; i.e., the Level 2 High Power Certification Candidate must have at least 35 or more correct answers out of the 40 questions in the exam.
    7. In the event of an initial exam failure, the member may immediately re-take a different exam version. If the member fails a second exam, the member must wait a minimum of seven (7) days to attempt the exam again.
    8. The exam must be completed prior to the flight attempt. The flight attempt should be made as soon as reasonably and safely possible after successful exam completion. The written exam will not have to be repeated if the initial flight attempt(s) fail, or if a successful flight is completed within one year of taking the written exam.
    9. Graded and signed Exam Answer Sheets must be retained by the Level 2 High Power Certification Candidate until the completion of their certification flight. The signed, completed Exam Answer Sheet shall be attached to the back of a NAR Level 2 High Power Certification Application either by staple or paperclip. Loss of the signed answer sheet will require the Level 2 High Power Certification Candidate to retake the exam before making the certification flight attempt.
  3. Certification Teams (required for flight)
    1. The Certification Team consists of two individuals who are a minimum of 18 years old and are members in good standing of the NAR. The Certification Team members must be unrelated to the applicant. Members of Tripoli, unless they are also members of the NAR, cannot participate on a Certification Team.
    2. At least one of the Certification Team members must be already certified to a level equal to the certification level being attempted, e.g., a Certification Team member must be certified at Level 2 to judge another individual’s Level 2 certification attempt.
    3. Level 2 certifications may be administered by a single NAR Level 3 certified individual; the two certified individuals’ requirement in Section 3.1 is waived in this case.
    4. Certification attempts must be witnessed in person by the Certification Team. Video recordings of a certification flight are not acceptable.
  4. Certification Process and Documentation
    1. The Level 2 High Power Certification Candidate must take and pass a HPR Level 2 Written Exam prior to their Level 2 certification flight attempt.
    2. The certification flight may be accomplished at any launch where sufficient individuals meeting the requirements of Section 2 are available.
    3. FAA regulations requiring notification or waivers must be complied with and the launch site must have a FAA waiver for high power models in effect at the time of launch. All conditions and restrictions imposed by the FAA must be satisfied and followed.
    4. The Level 2 High Power Certification Candidate must build the rocket that they wish to use for their certification attempt. The model may be either scratch built or a kit and the rocket must be constructed in such a manner that it will perform safely under the additional stress of a higher impulse HPR motor. Teams attempting to certify cannot use the same rocket, but rather are required to each build their own model. In addition, the member must use an active recovery system for their certification attempt, which usually includes parachute recovery; details of these recovery methods are described in the Definition of Active Recovery.
    5. The Level 2 High Power Certification Candidate must demonstrate their ability to build and fly a rocket containing at least one J, K, or L impulse class motor. Cluster or staged models used for certification may not contain over 5120.00 Newton seconds total impulse. In the case of a cluster or staged model, at least one of the individual motors must be a J, K, or L impulse motor. Combinations of smaller impulse motors that add up to meet the impulse requirements do not qualify as the model does not contain at least one J, K, or L impulse motor. Single use, reloadable, or hybrid technology motors are permitted. The Level 2 High Power Certification Candidate must assemble the reloadable motor, if used, in the presence of a Certification Team member.
    6. The Level 2 High Power Certification Candidate must complete the Applicant Information portion of a NAR Level 2 High Power Certification Application prior to the certification flight attempt.
    7. The model will be subjected to a safety inspection prior to flight. A High Power Certification Checklist is located on the back of the NAR Level 2 High Power Certification Application. The Certification Team will ask the Level 2 High Power Certification Candidate the checklist questions and mark the boxes as appropriate. Also during the safety inspection, the Level 2 High Power Certification Candidate will be expected to provide oral answers to technical questions related to the safety and construction of their model. The questions may include (but not limited to) identification of the model’s center of gravity and center of pressure, methods used to determine model stability, and interpretation of the rocket motor’s designation. Once satisfied, the Certification Team will fill out/check the appropriate blocks under the HPR Level 2 Checklist prior to flight.
    8. The Level 2 High Power Certification Candidate will fly their model. The flight must be witnessed directly by the Certification Team. Stability, deployment of the recovery system, and safe recovery will be considered when evaluating safety of the flight. Models experiencing a catastrophic failure of the airframe, rocket motor, and/or recovery system (e.g., shock cord separation) will not be considered as having a safe flight.
    9. The model must be returned to the Certification Team directly after flight for inspection to verify engine retention and for evidence of any flight-induced damage. The Certification Team will check the appropriate blocks in the HPR Level 2 Checklist indicating that a safe flight was made and that the post-flight inspection was satisfactory. In general, the guideline for acceptable flight damage is that the model could be flown again without repair. It is left to the judgment of the Certification Team to differentiate between flight damage and “normal” maintenance to assure reliability (e.g., shock cord replacement to prevent future flight problems). “Zippering” of the body tube is another area of flight damage left to Certification Teams judgment for acceptability.
    10. The Certification Team will fill out and sign the Certification Affidavit to indicate that the certification attempt was successfully completed. One of the Certification Team members will also fill out the NAR HPR Level 2 Temporary Certification card at the bottom of the NAR Level 2 High Power Certification Application. Both the certification sheet and the certification card must be signed. Except as noted below, the completed NAR Level 2 High Power Certification Application and the HPR Level 2 Exam Answer Sheet will be returned to the Level 2 High Power Certification Candidate after the flight.
      1. NOTE: It is up to the Level 2 High Power Certification Candidate and the Certification Team to ensure that the NAR Level 2 High Power Certification Application is correct and complete. Incorrect/incomplete applications will delay completing the certification process by the NAR on the Level 2 High Power Certification Candidates NAR account.
    11. The Level 2 High Power Certification Candidate must now fill out the Digital Level 2 HPR Certification Form. The digital form is basically an electronic copy of the NAR Level 2 High Power Certification Application and is meant to ensure the information submitted is both complete and legible. The Level 2 High Power Certification Candidate will include scans/photos of both sides of the completed NAR Level 2 High Power Certification Application as well as the signed, completed Exam Answer Sheet as directed on the digital form.
      1. NOTE: If the Level 2 High Power Certification Candidate does not have a computer and/or access to the internet, it is up to them to get a Certification Team member to complete the digital form on their behalf.
    12. Upon submission of the digital form, the NAR will receive the information required for processing the certification as well as the backup scans/photos.
    13. The NAR will email the Certification Team member(s) to confirm the successful certification attempt by the Level 2 High Power Certification Candidate. Upon confirmation, the NAR will complete the certification processing and update the members NAR account with their Level 2 High Power status.
    14. The release of a new NAR membership card will be initiated showing the members new Level 2 High Power Certification.
      1. NOTE: Please allow 4-6 weeks for delivery before contacting the NAR about missing cards.
    15. The NAR HPR Level 2 Temporary Certification card is valid for 60 days after the certification date or until the end of the NAR member’s membership, whichever comes first. The temporary card is recognized as proof of the certification level. The temporary card should be destroyed upon receipt of a new NAR membership card which shows the Level 2 HPR Certification status.
  5. Administrative items
    1. Falsification of data or statements by the Level 2 High Power Certification Candidate will result in revocation of the high power certification. Falsification of data or statements by the Certification Team, e.g., failure to secure a FAA waiver, can result in revocation of the team members’ NAR memberships.
    2. NAR members who are currently Tripoli Level 2 certified may grandfather in at NAR Level 2 by completing the identification portion of a NAR Level 2 High Power Certification Application and attaching proof of current Tripoli certification (e.g., photocopy of Tripoli consumer confirmation card) to NAR headquarters with a request that their certification level be updated.
    3. Tripoli certifications will be honored at NAR launches. A current Tripoli Membership Card is required as evidence of Tripoli high power certification at launches.
      1. NOTE: Only certified motors may be flown by Tripoli members at NAR launches (i.e., no research motors may be flown).
    4. NAR HPR certifications, once earned, are valid whenever NAR membership is current, and are reinstated upon request after membership lapses.
HPR Certification paperwork should not be mailed or emailed to NAR Headquarters.
Please do not contact NAR Headquarters regarding HPR Certification questions and issues.
All HPR Certification process questions should be directed to HPRCertifications@nar.org.

Revision of January 1, 2022