PTA may refer to:

Organizations

* Andalusia Technology Park (), a science park in Málaga, Spain *

Pakistan Telecommunication Authority The Pakistan Telecommunication Authority (PTA) () is the telecommunication regulator of Pakistan, responsible for the establishment, operation and maintenance of telecommunication systems and the provision of telecommunication services in Pakis ...

, an agency in Pakistan responsible for communication networks. *

Parent–teacher association A parent–teacher association/organization (PTA/PTO), parent–teacher–friend association (PTFA), is a formal organization comprising parents, teachers and staff that is intended to facilitate parental participation in a school. A parent–te ...

, an organization of parents, teachers, and staff at a school * Passenger transport authority, a United Kingdom local government authority *

Public Transport Authority (Denmark) The Danish Civil Aviation and Railway Authority () is the Danish government agency responsible for regulating, planning and safety relating to public transport in Denmark. The agency also acts as an advisor towards the ministry related to policy a ...

Public Transport Authority (Western Australia) The Public Transport Authority (PTA) is a statutory authority that oversees the operation of all public transport in Western Australia. History The Public Transport Authority was formed on 1 July 2003 in accordance with the ''Public Transport ...

Science and medicine

* 1,3,5-Triaza-7-phosphaadamantane, organic compound * Percutaneous transluminal angioplasty, surgical procedure * Peritonsillar abscess *

Persistent truncus arteriosus Persistent truncus arteriosus (PTA), often referred to simply as truncus arteriosus, is a rare form of congenital heart disease that presents at birth. In this condition, the embryological structure known as the truncus arteriosus (embryology), t ...

, congenital heart disease * Pharmacy Technical Assistant *

Phosphate acetyltransferase In enzymology, a phosphate acetyltransferase () is an enzyme that catalyzes the chemical reaction :acetyl-CoA + phosphate \rightleftharpoons CoA + acetyl phosphate The substrates of this enzyme are acetyl-CoA and phosphate, whereas its two produ ...

, enzyme *

Phosphotungstic acid Phosphotungstic acid (PTA) or tungstophosphoric acid (TPA), is a heteropoly acid with the chemical formula . It forms hydrates . It is normally isolated as the ''n'' = 24 hydrate but can be desiccated to the hexahydrate (''n'' = 6). EPTA is the na ...

, acid catalyst and stain * Physical Therapist Assistant * Plasma thromboplastin antecedent, blood enzyme * Plasma Transferred Arc,

coating A coating is a covering that is applied to the surface of an object, or substrate. The purpose of applying the coating may be decorative, functional, or both. Coatings may be applied as liquids, gases or solids e.g. powder coatings. Paints ...

technology *

Post-traumatic amnesia Post-traumatic amnesia (PTA) is a state of mental confusion, confusion that occurs immediately following a traumatic brain injury (TBI) in which the injured person is Orientation (mental), disoriented and unable to remember events that occur after ...

, state of confusion following a traumatic brain injury *

Pulsar timing array A pulsar timing array (PTA) is a set of galactic pulsars that is monitored and analyzed to search for correlated signatures in the pulse arrival times on Earth. As such, they are galactic-sized detectors. Although there are many applications for p ...

, technique to detect gravitational waves *

Pure tone audiometry Pure-tone audiometry is the main hearing test used to identify Hearing (sense), hearing threshold levels of an individual, enabling determination of the degree, type and configuration of a hearing loss and thus providing a basis for diagnosis a ...

, hearing test *

Purified terephthalic acid Terephthalic acid is an organic compound with formula C6H4(CO2H)2. This white solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles. Several million tons are produced annuall ...

, organic compound used to make polyester

Other uses

Paul Thomas Anderson Paul Thomas Anderson (born June 26, 1970), also known by his initials PTA, is an American filmmaker. Often described as one of the most preeminent writer-directors of his generation, List of awards and nominations received by Paul Thomas Anders ...

, American filmmaker * a possible mnemonic symbol for Peseta, the former Spanish currency * Postal code for

Pietà, Malta Pietà () is a small harbour town in the Eastern Region of Malta, located near the outskirts of the capital city Valletta. Etymology The name ''Tal-Pietà'' is derived from Italian, and means "Pity", referring to the pity of Our Lady of Sorro ...

* ''

Planes, Trains and Automobiles ''Planes, Trains and Automobiles'' is a 1987 American road trip comedy film written, produced, and directed by John Hughes and starring Steve Martin and John Candy. It tells the story of Neal Page, an uptight marketing executive, and Del Griff ...

'', a 1987 American film by John Hughes *

Pohakuloa Training Area Pōhakuloa Training Area (PTA) is a US military training base located on the high plateau between Mauna Loa, Mauna Kea and the Hualālai volcanic mountains of the island of Hawaii. It includes a small military airstrip known as Bradshaw Army A ...

, a military training facility * Point of total assumption, a contract term *

Port Talbot Parkway railway station Port Talbot Parkway railway station is a railway station in Port Talbot, Wales. The station is located at street level near Station Road in Port Talbot town centre. It is from London Paddington station, London Paddington (via Stroud). Histor ...

in Wales (station code) *

Preferential trading area A preferential trade area (also preferential trade agreement, PTA) is a trading bloc that gives preferential access to certain products from the participating countries. This is done by reducing tariffs but not by abolishing them completely. It ...

, a type of trading bloc *

Pretoria Pretoria ( ; ) is the Capital of South Africa, administrative capital of South Africa, serving as the seat of the Executive (government), executive branch of government, and as the host to all foreign embassies to the country. Pretoria strad ...

, the administrative and de facto capital of South Africa * Prevention of Terrorism Act, the name of several countries' Acts of Parliament *

Program test authority In broadcasting, program test authority (PTA) is an authorization to conduct on-air testing of broadcast station facilities authorized to be built under a construction permit. Once this testing is successfully completed, and all measured paramet ...

, after a construction permit but before a broadcast license {{disambig