Question: Hagerstown Regional Airport and McClellan–Palomar Airport, are which type of airport?

Context paragraphs:
Hagerstown Regional Airport: Hagerstown Regional Airport (IATA: HGR, ICAO: KHGR, FAA LID: HGR) , also known as Richard A. Henson Field, is a county owned public use airport in Washington County, Maryland, United States.  It is located four nautical miles (5 mi, 7 km) north of the central business district of Hagerstown, Maryland, about a half mile (800 m) from the Maryland/Pennsylvania border.  The airport is in Western Maryland off Interstate 81 at exit 10 and U.S. Route 11, not far from Northern Virginia, South Central Pennsylvania, and the Eastern Panhandle of West Virginia.

Manassas Regional Airport: Manassas Regional Airport (IATA: KHEF, ICAO: HEF) , also known as Harry P. Davis Field, is a city-owned public-use airport located four nautical miles (7 km) southwest of the central business district of Manassas, in a section of Manassas that was carved out of Prince William County specifically for the purpose of containing the airport.  The largest regional airport in the state of Virginia, Manassas Regional Airport is located 30 miles from Washington, D.C.

Hagerstown Airport: Hagerstown Airport (FAA LID: I61) is a public airport located one mile (1.6 km) south of the central business district of Hagerstown, a town in Wayne County, Indiana, United States.  This airport is publicly owned by the Town of Hagerstown.

Elizabeth City Regional Airport: Elizabeth City Regional Airport (IATA: ECG, ICAO: KECG, FAA LID: ECG) is a joint civil-military public and military use airport located three nautical miles (6 km) southeast of the central business district of Elizabeth City, in Pasquotank County, North Carolina, United States.  The airport, on the shore of the Pasquotank River, is also known as Elizabeth City-Pasquotank County Regional Airport or ECG Regional Airport.  It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a "general aviation" facility.

Pensacola International Airport: Pensacola International Airport (IATA: PNS, ICAO: KPNS, FAA LID: PNS) , formerly Pensacola Gulf Coast Regional Airport and Pensacola Regional Airport (Hagler Field), is a public use airport three nautical miles (6 km) northeast of the central business district of Pensacola, in Escambia County, Florida, United States.  It is owned by the City of Pensacola.  Despite the name, this airport does not offer direct international flights.  This airport is one of the five major airports in North Florida, others being: Northwest Florida Beaches International Airport, Destin-Fort Walton Beach Airport Tallahassee International Airport, and Jacksonville International Airport.

McClellan–Palomar Airport: McClellan–Palomar Airport (Palomar Airport) (IATA: CLD, ICAO: KCRQ, FAA LID: CRQ) is a public airport three miles (5 km) southeast of Carlsbad in San Diego County, California.  It is owned by the County of San Diego.  The airport is used for both general aviation and commercial aviation.  In March 2013 the airport was the fourth-busiest single runway airport in the United States.  In August 2017, the airport announced a new commercial airline Cal Jet, would start operating flights in September 2017.

El Palomar Airport: El Palomar Airport (IATA: EPA, ICAO: SADP) , is a military airport in El Palomar, Argentina.  It is the homebase of Argentine Air Force 1st Air Brigade (Spanish: "Primera Brigada Aérea" ), located 18 km west of Buenos Aires, near the El Palomar station of the San Martín railway line.

U.S. Route 11 in Maryland: U.S. Route 11 (US 11) is a part of the U.S. Highway System that runs from New Orleans, Louisiana to Rouses Point, New York.  In Maryland, the federal highway runs 12.83 mi from the West Virginia state line at the Potomac River in Williamsport north to the Pennsylvania state line near Maugansville.  US 11 is the primary north–south surface highway in central Washington County, connecting Hagerstown with Williamsport to the south and Hagerstown Regional Airport to the north.  The federal highway was once a major long-distance highway, but that role has been assumed by Interstate 81 (I-81), which parallels US 11 not only in Maryland but for most of its course from Tennessee to Upstate New York.  US 11 is maintained by the Maryland State Highway Administration except for the municipally-maintained portions within the corporate limits of Williamsport and Hagerstown.

Pittsburgh Institute of Aeronautics: The Pittsburgh Institute of Aeronautics, known to the industries it serves as PIA, is located at the Allegheny County Airport just south of Pittsburgh, Pennsylvania.  PIA offers Associate in Specialized Technology (AST) degrees in Aviation Maintenance Technology and Aviation Electronics Technology and diploma programs in Aviation Maintenance Technology.  Pittsburgh Institute of Aeronautics has three branch campuses.  The Youngstown-Warren Branch Campus is located at the Youngstown-Warren Regional Airport in Vienna, Trumbull County, Ohio.  The Hagerstown Branch Campus is located adjacent to the Hagerstown Regional Airport in Hagerstown, Maryland.  The Myrtle Beach Branch Campus is located near the Myrtle Beach International Airport and International Technology and Aerospace Park in Myrtle Beach, South Carolina.

Ta'if Regional Airport: Ta'if Regional Airport (IATA: TIF, ICAO: OETF) is an airport in Ta'if, Saudi Arabia.  Despite its name, it also offers many international flights as well.  The airport is located 30 km to the east of Taif and 70 km from Mecca.  The airport is considered important in Saudi aviation history as it witnessed the first landing of Ibn Saud's plane, founder of the Kingdom.  It was converted to a regional airport in 2009 when GACA allowed international airlines to operate at the airport as the city's population was increasing and to reduce pressure on the three main airports at the time.  Despite being named as a "Regional" airport, the airport actually has international flights destinations in half a dozen countries outside of Saudi Arabia.

Supporting paragraphs: Hagerstown Regional Airport McClellan–Palomar Airport
Answer: public