Type: 
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      Version: 
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   Maintainer: 
Specification:

TRIF was developed by the Tiling Task Group at the National Institute 
for the interchange of tiled raster data. TRIF is very similar to the
CALS Type II raster format and shares many of the same standards documents.

The keeper of TRIF seems to be:

  Frankie E. Spielman
  National Institute of Standards and Technology
  Voice: 301.975.3257

Military standards for TRIF include:

  Standards for the Interchange of Large Format Tiled Raster Documents,
  NISTIR 88-4017 (December 1988). Section 4, "A Document Application
  Profile for the Interchange of Large Format Tiled Raster Documents",
  contains the application profile definition of a TRIF coded document.

  Requirements for Raster Graphics Representation in Binary Format,
  MIL-R-28002A

  Automated Interchange of Technical Information, MIL-STD-1840A 
  (22 December 1987).

  Information Processing - Text and Office Systems - Office Document
  Architecture (ODA) and Interchange Format - Part 1: Introduction and 
  General Principles, ISO 8613/1.

  Information Processing - Text and Office Systems - Office Document 
  Architecture (ODA) and Interchange Format - Part 2:  Document Structures,
  ISO 8613/2.

  Information Processing - Text and Office Systems - Office Document
  Architecture (ODA) and Interchange Format - Part 4: Document Profile,
  ISO 8613/4.

  Information Processing - Text and Office Systems - Office Document
  Architecture (ODA) and Interchange Format - Part 7: Raster Graphics
  Content Architectures - Tiled Raster Graphics Addendum, Addendum to
  ISO 8613/7.

  Specification of Abstract Syntax Notation One (ASN.1), ISO 8824.

  Specification of Basic Encoding Rules for Abstract Notation One (ASN.1),
  ISO 8825.