United States Nuclear Regulatory Commission - Protecting People and the Environment

Well-Logging Licensee Toolkit

This toolkit is designed to help licensees find key information easily.

On this page:

This page includes links to files in non-HTML format. See Plugins, Viewers, and Other Tools for more information.


The NRC's regulations are found in Chapter I of Title 10, "Energy," of the Code of Federal Regulations (CFR). Chapter I is divided into Parts 1 through 199. The following part contains the requirements most relevant to well-logging licensing and possession: Part 39- "Licenses and radiation safety requirements for well logging."

See also the Medical, Industrial, Academic Uses of Nuclear Materials Regulations, Guidance, and Communications page.

To top of page


Consolidated materials guidance is published in "Consolidated Guidance About Materials Licenses" (NUREG-1556).

  • Volume 14, Program-Specific Guidance About Well Logging, Tracer, and Field Flood Study Licenses
  • Volume 19, Guidance for Agreement State Licensees About NRC Form 241 "Report of Proposed Activities in Non-Agreement States, Areas of Exclusive Federal Jurisdiction, or Offshore Waters" and Guidance for NRC Licensees Proposing To Work in Agreement State Jurisdiction (Reciprocity)

Regulatory guides are issued in 10 divisions and are intended to aid licensees in implementing regulations. For a specific list of the most applicable guides in Division 8, Occupational Health, see the Medical, Industrial, and Academic Uses of Nuclear Materials Regulations, Guidance, and Communications page.

Web (HTML) versions of some regulatory guides are available for viewing or downloading at this site. In the index for each division of guides, the number of each guide available at this site is underscored. All active final and draft guides are also available in NRC's Agencywide Documents Access and Management System (ADAMS).

To top of page

Inspection Procedures

NRC's regional offices (Region I - East, Region III - Midwest, and Region IV - West/Southwest) conduct typically unannounced, periodic inspection of licensed activities using guidance from Inspection Manual, Chapter 2800. The frequency of inspection is based on the hazard of materials used. The following inspection procedures are directly related to well logging.

For additional references, see the Medical, Industrial, Academic Uses of Nuclear Materials Inspection page.

To top of page

License Types

NRC assigns five-digit program code number(s) to each license according to the principal activities authorized in the license. NRC uses approximately 100 program codes to classify the activities of thousands of active licenses. The program codes that are assigned to a license may be used to identify the applicable fee categories in the schedules in 10 CFR Part 170 and 10 CFR Part 171. To learn more about program codes and the associated fee and inspection categories, see "Consolidated Guidance About Materials Licenses: Guidance About Administrative Licensing Procedures" (NUREG-1556, Vol. 20), Appendix G: LTS Program Code Descriptions. The table below gives information on the program codes for various types of licenses.

Program Codes Used in Well-Logging Licensing and Inspection Programs

License Type Program Code
Well-Logging Byproduct and/or SNM Tracer and Sealed Sources 03110
Well-Logging Byproduct and/or SNM Sealed Sources Only 03111
Well-Logging Byproduct Only – Tracers Only 03112
Field Flooding Studies 03113

To top of page


Well-Logging license applicants are required to pay a fee to the NRC upon application for a new license and are required to pay an annual license fee to the NRC thereafter. Refer to the applicable fee categories in the schedules in 10 CFR Part 170 and 10 CFR Part 171 for the fees required for each category of license and each type of fee.

To top of page


The following forms are to be used by all well-logging licensees.

To top of page

Page Last Reviewed/Updated Friday, July 07, 2017