Police officer training curriculum receives DoD Peace Officer Standards and Training Commission (DoD POST) accreditation, which includes course accreditation of basic law enforcement training courses and certification of law enforcement officers and intelligence analysts.

Chris Bargery is selected as acting director of PFPA.

Chris Bargery is appointed as deputy director of PFPA.

Pentagon Support Operations Center, consisting of a 24/7 training capability for police officers and special agents. The new facility serves as the permanent home for a new, state-of-the-art PFPA range and armory, the K-9 unit with kennels, and the Court Liaison and Evidence Unit.

Police officer training curriculum receives DoD Peace Officer Standards and Training Commission (DoD POST) accreditation. The DODPOST Commission administers a professional commissioning/licensing program, which includes course accreditation of basis law enforcement training courses and certification of law enforcement officers and intelligence analysts. Successful completion of DoD POST accreditation produces the highest norms of officer performance and behavior through training design, development and delivery and quality control and surveillance process.

Dr. Daniel P. Walsh is appointed as the fourth director of PFPA.

PFPA Cpl. George Gonzalez was attacked and killed on the Pentagon Upper Bus Platform.

Mail screening operations transferred from the Pentagon to the Mark Center.

PFPA establishes Diversity and Inclusion program and working group to evaluating every aspect of diversity and inclusion within PFPA and address potential issues.

PFPA establishes Counter Assault Team (CAT) consisting of PFPA Emergency Response Team operators is established to avert threats from Terror State Actors.

PFPA establishes Civil Disturbance Unit in response to DC riots surrounding the death of George Floyd and the attack on the U.S. Court of Military Appeals for the Armed Forces..

PFPA is the first and then only DoD Law Enforcement Agency to have its K9 Program approved by the Military Working Dog Program Manager.

PFPA implements Counter Suicide Bomber program.

Full implementation of Person-Borne Improvised Explosive Device (PBIED) detection capability for Pentagon police canines.

PFPA establishes a Pentagon Counter Small Unmanned Aircraft System program.

Assistant Chief Woody Kusse is appointed as the third PFPA Chief of Police.

Mr. Jonathan H. Cofer is appointed as the third director of PFPA.

PFPA tasked with establishing and maintaining an insider threat program for the Office of the Secretary of Defense.

New Pentagon Visitor Entrance opens. The new facility includes enhanced technologies and greater capacity to safely screen more than 1,000 daily visitors for hazardous, contraband, and unauthorized material before they enter the Pentagon.

Pentagon employees begin using the Common Access Card for physical access to the Pentagon.

Pentagon Shield, a chemical and biological defense monitoring system introduced to the Pentagon in 2006, is completed.

PFPA Leadership Development Program established; an in-house leadership development program modeling the Agency’s values and guiding principles.

Pentagon Office of Emergency Management established to provide the Pentagon a more effective and holistic approach to emergency management, continuity of operations, continuity of government, operations center command and control, and exercises.

James Ballard is appointed as the second PFPA Chief of Police.

PFPA's Hazardous Devices Division was officially certified as an FBI-Accredited Bomb Squad.

PFPA assumes responsibility for protecting the Defense Health Headquarters in Falls Church, VA.

Pentagon Emergency Response Center established to house the PFPA CBRNE Headquarters, CBRNE Response Division, Environmental Laboratory, Explosive Ordnance Disposal Unit (now named Hazardous Devices Division), and Emergency Response Team

Mark Center Complex opens to its first tenants. PFPA designated as force protection provider. This site was selected as a result of the 2005 Base Realignment and Closure process (BRAC 133) to consolidate more than 6,000 DoD employees from commercially-owned leased office space around the DC area.

PFPA enters into a Memorandum of Understanding with the FBI, establishing the assignment of multiple PFPA special agent positions to FBI-led Joint Terrorism Task Forces.

Marine Reservist Yonathan Melaku opens fire at the Pentagon, hitting the side of the building, but not hurting anyone. PFPA works with the FBI Joint Terrorism Task Force in the investigation, which includes similar incidents that took place at five other military-related facilities in Northern Virginia.

PFPA Police Officers Amos, Carraway, Richards, and Jones receive the Office of the Secretary of Defense Medal for Valor for their actions on March 4, 2010.

Lone gunman, John Patrick Bedell, opened fire on Pentagon Police Officers Jeffery Amos and Marvin Carraway, while attempting to enter the Pentagon. Police officers Amos and Carraway were joined by Officers Colin Richards and Dexter Jones in returning fire on Bedell and kept him from entering the building.

PFPA assumes responsibility for protecting the Pentagon Memorial

Integrated Emergency Operations Center (IEOC) is established (later re-named the Pentagon Operations Center) in the Pentagon to integrate 911 call-taking, police dispatch, building systems monitoring, chem./bio monitoring and dispatch, and smoke/fire alarm monitoring.

PFPA expands protective services for Office of the Secretary of Defense High Risk Personnel, to include personal protection for periodic overseas missions and production of tailored threat/vulnerability assessments.

PFPA assumes security of the U.S. Court of Appeals for the Armed Forces in Washington D.C.

PFPA assumes force protection and criminal investigation responsibilities for the Raven Rock Mountain Complex (RRMC) and protection of the Air Force Memorial.

Steven E. Calvery is appointed as the second director of PFPA.

PFPA assumes responsibility for all Pentagon mail screening following suspected Anthrax incident at the Pentagon and Skyline Towers.

Pentagon Police Officer James M. Feltis, III critically injured trying to stop a car-jacked vehicle that entered the Pentagon South Parking Lot.

On-site Environmental Sampling Laboratory established. Laboratory tests various bio/chem. samples from dry filter units in and around the Pentagon, as well as filter samples from the mail that is collected and screened every day at the Pentagon.

John Jester is appointed as the first director of PFPA.

Operation Noble Eagle demobilizes, following the gradual replacement of military police officers by newly hired PFPA police officers.

Richard Keevill is appointed as the first PFPA Chief of Police.

PFPA is formally established under DoD Directive 5105.68 to address the “full spectrum of threats”. John Jester, then Chief of DPS, is appointed as the Acting Director of PFPA. All personnel and resources from DPS are transferred to PFPA.

Letters laced with anthrax began appearing in the U.S. mail. Five Americans were killed and 17 were sickened in what became the worst biological attacks in U.S. history. Specifically, letters were mailed to Senator Leahy, Senator Daschle, Tom Brokaw, and the Editor of the New York Post. This prompted federal agencies to establish mail screening facilities across the country.

A day after the attack on the Pentagon, security was ramped up as DPS police officers were augmented by military police officers, designated "Operation Noble Eagle."

American Airlines Flight #77 is flowed into the Pentagon by terrorists at 9:38 a.m., killing 184 individuals (59 passengers and 125 Pentagon employees). At the time, the Defense Protective Service (DPS) consisted of about 350 employees (250 police officers). 18 DPS employees were awarded the OSD Medal for Valor award for their role in rescuing victims of the attack.