PIA TS 135  m. "Parachute" means a device used or intended to be used to retard the fall of a body or object  through the air.  n.  “Parachutist in Command” –  means the person making a tandem jump who:  (1) Has final authority and responsibility for the operation and safety of the jump;  (2) Has been designated as parachutist in command before the jump; and  (3) Holds the appropriate rating for the conduct of the jump. o.  “Passenger parachutist” means a person who boards an aircraft, acting as other than  the  parachutist in command of a tandem parachute operation, with the intent of exiting the  aircraft while in-flight using the forward harness of a dual harness tandem parachute system  to descend to the surface.  a. Deployment control device such as a sleeve, bag, diaper, or functional equivalent.  b. Deployment initiation device (pilot chute, drogue, or functional equivalent) and bridle.  c. Canopy(s) including suspension lines, reefing device, and connector links (if used).  d. Riser(s), when not integral with harness and/or canopy.  e. Stowage container(s) or stowage pack(s).  f.  Harness (es).  g. Primary actuation device (ripcord or functional equivalent).  h. Reserve static line.  i.  Drogue canopy and bridle (if used with reserve and/or emergency parachutes).  j.  Drogue release device (if used with reserve and/or emergency parachutes).  2.1.1  MAJOR COMPONENTS: 2.1.2 SINGLE HARNESS RESERVE PARACHUTE ASSEMBLY: 2.1.3 DUAL HARNESS RESERVE PARACHUTE ASSEMBLY: 2.1.4 MAIN PARACHUTE ASSEMBLY: 2.1.5 SINGLE HARNESS EMERGENCY PARACHUTE ASSEMBLY: For purposes of this document a parachute assembly normally, but not exclusively, consists of  the following major components:  A certified parachute assembly that is worn in conjunction with a main parachute assembly and  used by one person for premeditated jumps. This includes, as applicable, the reserve  deployment initiation device, deployment control device, canopy, risers, stowage container,  harness, primary actuation device, and reserve static line.  A certified parachute assembly used for premeditated jumps by two people: a parachutist in  command and a second parachutist (each in his/her own harness), utilizing one main parachute  assembly and one reserve parachute assembly. This assembly includes, as applicable, the  reserve deployment initiation device, deployment control device, canopy, risers, stowage  container, harness, primary actuation device, and reserve static line. A non-certified parachute assembly that is worn in conjunction with a certified reserve parachute  assembly as the primary parachute (the one intended for use) for premeditated jumps. The main  parachute assembly shall consist of the main container and all associated parts of the main  parachute that are not permanently attached to the certificated harness assembly. A certified parachute assembly that is worn by one person for emergency, (unpremeditated) use  only. This assembly includes, as applicable, the deployment initiation device, deployment  control device, canopy, risers, stowage container, harness, and primary actuation device.  DISTRIBUTION STATEMENT: All Rights Reserved. No Part of this publication may be reproduced without prior written permission from Parachute Industry Association. PIA Headquarters, Parachute Certification St andards Committee, 3833 West Oakton Street, Skokie, IL 60076 Phone: 847-674-9742 Fax: 847-674-9743 or  website www.pia.com for contact details.  Disclaimer: This document is published by the PIA to provide technical and engineering standards that can be used by reference by all those who may benefit from them. The use of this document is entirely voluntary, and its applicability and suitability for any particular use, including any patent or trademark infringement  arising there from, is the sole responsibility of the user. There may be errors, especially in numbers. PIA disclaims any responsibility for accuracy. The PIA reviews each technical publication periodically, at which time it may be reaffirmed, revised, or canceled. The PIA invites your written comments and suggestions.  Copyright © 2010 Parachute Industry Association.  PIA TS-135, Revision 1.4, Issued April 22, 2010, Page 3 of 18  Change 1 (December 2015)  A-28