Category: Personnel Vetting & Clearances
Federal Investigative Standards
Also known as: FIS, 2012 Federal Investigative Standards
Simply put
The Federal Investigative Standards (FIS) are a set of government-wide standards that define how background investigations are conducted for federal applicants and employees. The 2012 version organizes investigations into five tiers, each corresponding to a different level of trust or access, with separate requirements for periodic reinvestigation. These standards are being succeeded by the 2022 Federal Personnel Vetting (FPV) Investigative Standards.
Formal definition
The Federal Investigative Standards (FIS) establish a tiered framework governing the scope and conduct of personnel background investigations for federal positions. As documented in the 2012 FIS, investigations are structured into five tiers, with Tiers 2 through 5 each having a corresponding reinvestigation requirement (e.g., Tier 2R, Tier 3R, Tier 5R). Reinvestigation periodicity varies by tier rather than following a single uniform interval, so practitioners should verify the specific requirement applicable to a given tier against current authoritative guidance. A crosswalk maintained through CDSE maps the 2012 FIS to the 2022 Federal Personnel Vetting (FPV) Investigative Standards, indicating the terminology and standards are evolving; readers should confirm which standard governs a given investigation. Note that state, local, and other non-federal agencies not required to implement federal background investigation standards may follow different requirements.
Why it matters
Personnel vetting is a foundational element of trust in federal and defense environments, because granting an individual access to systems, facilities, or information presumes that the individual has been investigated to a level commensurate with the sensitivity of that access. The Federal Investigative Standards (FIS) provide the government-wide framework that determines how deeply an applicant or employee is investigated, tying the scope of the background investigation to the tier of trust or access being sought. Without a common standard, agencies would apply inconsistent vetting rigor, undermining reciprocity and creating gaps in the assurance that underpins access decisions.
Who it's relevant to
Security and HR professionals
Personnel who initiate and manage background investigations rely on the FIS to determine the correct tier for a position and to identify the associated reinvestigation requirement. They must confirm whether the 2012 FIS or the 2022 FPV Investigative Standards govern a given case and verify tier-specific periodicity against current authoritative guidance, since these vary by tier rather than following a single interval.
Federal applicants and employees
Individuals being investigated for federal positions provide the information required for their background investigation through investigative Standard Forms (SF). The tier applicable to their position determines the scope of the investigation and when reinvestigation is required.
Adjudicators and authorizing officials
Those responsible for trust and access determinations depend on FIS tiers to ensure that the level of investigation matches the sensitivity of the access being granted. They should be aware that reinvestigation is tier-dependent and that the governing standard may be the 2012 FIS or the successor 2022 FPV Investigative Standards.
State, local, and non-federal agencies
Agencies not required to implement federal background investigation standards may follow different requirements. Personnel in these organizations should not assume that FIS tiers or reinvestigation requirements apply to them and should confirm their own applicable standards.
Inside FIS
Tiered Investigation Model
The FIS establish a tiered structure aligning the scope and depth of a background investigation to the risk and sensitivity of the position. Tiers generally correspond to position risk and sensitivity designations (for example, non-sensitive low-risk positions, public trust positions, and national security sensitive positions). Practitioners should confirm the specific tier definitions and mappings against the current authoritative FIS text and implementing guidance, as designations and tier terminology have evolved.
Position Designation as the Triggering Determination
The applicable investigative tier is driven by the risk and/or sensitivity designation assigned to a position. Determining the correct designation is a prerequisite step, because it dictates which investigation and which reinvestigation periodicity apply. Designation methodology is addressed in implementing guidance that agencies apply; verify the current designation tool and standards in use.
Investigation Types and Scope Requirements
Each tier prescribes required investigative elements, such as record checks, coverage periods, and additional inquiries, commensurate with the tier. The precise required components differ by tier and have been subject to revision; consult the governing FIS document and the responsible investigative service provider for the current scope applicable to a given tier.
Reinvestigation (Periodic Reinvestigation) Requirements
The FIS prescribe reinvestigation requirements that vary by tier rather than applying a single uniform interval to all positions. Different tiers carry different periodicities. Because these intervals differ by tier and are subject to change, and because continuous vetting approaches have been affecting how and when reinvestigation occurs, practitioners must verify the current periodicity for the specific tier against the authoritative FIS and implementing guidance rather than assuming a common interval.
Government-Wide Applicability and Governing Authority
The FIS are intended to provide uniform, government-wide standards for the conduct of background investigations for suitability, fitness, credentialing, and national security purposes. They are issued and maintained by the responsible executive-branch authorities for personnel vetting policy; confirm the current governing issuance and the responsible oversight bodies, as personnel security policy authority and terminology have evolved.
Common questions
Answers to the questions practitioners most commonly ask about FIS.
Do the Federal Investigative Standards require reinvestigation every five years for all personnel?
No. There is no single government-wide five-year reinvestigation cycle that applies to everyone. The 2012 Federal Investigative Standards establish a tiered investigative model in which different tiers carry different reinvestigation periodicities. Reinvestigation intervals vary by the tier associated with the position's sensitivity and access level, and separate schedules apply to different tiers. Because periodicities differ by tier and because policy has been evolving toward continuous vetting approaches, you should verify the applicable interval for a specific position against the current authoritative guidance rather than assuming a uniform five-year cycle.
Does completing a background investigation under the FIS by itself grant a security clearance or authorize access?
No. An investigation and the resulting adjudication are distinct steps, and neither is the same as an access authorization. The FIS govern the scope and conduct of the investigation itself; a separate adjudicative determination, made against applicable adjudicative guidelines, decides eligibility. Eligibility for access to classified information is also distinct from being granted access, which additionally generally requires a need-to-know and, for many programs, execution of applicable agreements. Treating the completed investigation as equivalent to a clearance or to access authorization is a common and consequential error.
How do the FIS tiers map to the type of position or level of access being considered?
The 2012 FIS align investigative tiers to position sensitivity and risk, distinguishing non-sensitive public trust positions from national security positions requiring access to classified information. In general, higher sensitivity or higher levels of classified access correspond to more extensive investigative tiers. The precise tier applicable to a given position depends on the position designation determination made by the responsible agency. You should confirm the correct tier through your agency's position designation process and current authoritative guidance rather than inferring it, because designations and tier definitions can be subject to agency-specific interpretation and to ongoing policy updates.
Who determines which investigative tier applies to a particular position?
Position sensitivity and risk designation is generally the responsibility of the employing or sponsoring agency, applying the applicable designation criteria to the duties and access associated with the position. That designation drives the required investigative tier under the FIS. Because designation decisions are agency-specific and depend on the actual duties and access involved, the same nominal job title may carry different designations across organizations. Confirm the governing designation methodology and any agency supplements before selecting a tier.
How should organizations handle the shift from periodic reinvestigation toward continuous vetting?
Federal personnel vetting policy has been moving toward continuous vetting models that supplement or, for enrolled populations, may adjust traditional periodic reinvestigation. Organizations should not assume that legacy periodic reinvestigation timelines and continuous vetting enrollment are interchangeable, and they should determine which model applies to a given population under current policy. Because this area is evolving and involves both policy and implementing guidance from the responsible oversight and provider organizations, verify the current requirements and enrollment obligations against authoritative sources for your specific population.
Does an FIS-compliant investigation performed for one agency automatically satisfy another agency's requirements?
Not necessarily. While reciprocity policies are intended to reduce duplicative investigations, acceptance of a prior investigation generally depends on factors such as the tier and scope of the completed investigation, whether it remains current, the absence of a break in service or access, and any additional requirements imposed by the gaining agency or program. Some programs and access types carry supplemental requirements beyond the baseline investigation. Confirm reciprocity on a case-by-case basis with the gaining organization rather than assuming automatic acceptance; this entry does not address program-specific or agency-specific supplemental requirements.
Common misconceptions
All positions are reinvestigated on the same fixed schedule, such as every five years.
The FIS prescribe reinvestigation periodicities that vary by tier; different tiers carry different intervals. There is no single uniform reinvestigation interval that applies to every position, and these intervals are subject to change. The applicable periodicity should be verified for the specific tier against the current authoritative FIS.
A completed background investigation is itself the security clearance or the authorization to access sensitive or classified information.
The investigation collects and reports information; it is distinct from the subsequent adjudication and eligibility determination. Passing an investigation does not by itself confer access. Adjudicative determinations and access decisions are separate steps governed by their own standards.
The investigative tier can be chosen based on convenience or cost.
The required tier is determined by the position's risk and/or sensitivity designation, not by preference. The designation must be established first and then drives the applicable investigation and reinvestigation requirements.
Best practices
Establish and document the correct position risk and sensitivity designation before initiating an investigation, since the designation, not assumption, determines the applicable tier and its requirements.
Verify the reinvestigation periodicity for each specific tier against the current authoritative FIS and implementing guidance, rather than applying a single assumed interval across all positions.
Maintain a defensible record linking each individual to their position designation, the tier applied, the investigation conducted, and the resulting adjudicative or eligibility determination, keeping investigation and adjudication documented as distinct steps.
Confirm the current governing FIS issuance and responsible oversight authorities before relying on any tier definition, scope, or periodicity, because personnel vetting policy and terminology have evolved.
Coordinate with the responsible investigative service provider to confirm the current required scope and coverage for each tier, and track how continuous vetting programs affect reinvestigation timing.
Periodically review position designations for accuracy when duties change, since a change in a position's risk or sensitivity can change the applicable investigative tier and reinvestigation requirements.