BIMForum 2024 LOD Specification

The BIMForum 2024 LOD Specification (LOD Specification) is a reference tool that aids in improving the quality of communication among Project Owners and their teams using Building Information Models (BIMs) on their projects. It achieves this by clarifying the 5 key characteristics of defining Model Elements MEs).

The specification is intended to be compatible for teams working with Level of Detail and Level of Development definitions. The confusion of these two terms with the same acronyms should be clarified in each Project BIM Execution Plan (PEP). The English version of this document is formed to be compatible with the most common US-based LOD definitions as well as those of other countries. The specification is also formed to allow project teams to adjust their use of the BIMForum Global Specification by stating any amendments to the LOD definitions that teams may have in the BIM section of their Project Execution Plan. This also permits those teams to utilize Level of Detail definitions if that is what is prescribed in their BIM PEP.

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LOD SPECIFICATION (ENGLISH)

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ESPECIFICACIÓN LOD (ESPAÑOL)

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PAST VERSIONS

BIMForum Global / Ascend, Founded 2017
BimForum.Global

2023 LOD Specification (BIMForum.Global/LOD)

BIMForum-Global_LOD-2023_ENG

BIMForum-Global_LOD-2023_ESP

2022 LOD Specification (BIMForum.Global/LOD)

BIMForum-Global_LOD-2022_ENG

BIMForum-Global_LOD-2022_ESP

The following LOD Specification editions are developed by other separate organizations. Redistribution is provided by BIMForum Global under the Creative Commons License they were developed under that allows redistribution of the material in any medium or format. The original content creators in these documents below retained the copyrights to that content. Several of the content owners have licensed their content to Ascend Building Knowledge Foundation, a 501c3 research and education nonprofit foundation and its subforum BIMForum Global. The new BIMForum Global LOD Specification is a new format with a new structure and has notable new content added in the 2022 version. Any similarities to BIMForum Global’s LOD Specifications were not derived from any other organizations but come from the fact that some of the same content owners have licensed their content they own to BIMForum Global for the development of BIMForum Global’ s new documents. The LOD Documents of other organizations are provided for reference order of their publication starting with the most recent dates originally published with proper citation to their relative organizations.

BIMForum, Pennsylvania founded in 2019
2105 Parkview Drive, Haverford, Pennsylvania, 1904-2004 (Pennsylvania-BIMForum)

2023 LOD Specification, Public Draft Comment Published December 2023, by Pennsylvania-BIMForum

2022 LOD Specification (Pennsylvania-BIMForum) Published by Pennsylvania-BIMForum

2021 LOD Specification Published December 28, 2021, by Pennsylvania-BIMForum

Pennsylvania-BIMForum_LOD-21_final_2021-12-28-1.pdf (Part 1 only)

Zip-file with Part 1 & Part 2 Excel Sheet Attached

2020 LOD Specification Published December 31, 2020 (2020 LOD Spec.), by Pennsylvania-BIMForum

Pennsylvania-BIMForum_LOD-20_final_2020-12-31-1.pdf (Part 1 only)

Zip-file with Part 1 & Part 2 Excel Sheet Attached

AGC BIMForum, (AGC-BIMForum) formed around 2005-2006 to 2019
Associated General Contractors of America (AGC)

2019 LOD Specification

Published April 2019, by AGC-BIMForum.

 

Link:
AGC-BIMForum_LOD-19_final_2019-4.pdf (Part 1 only)

Zip-file with Part 1 & Part 2 Excel Sheet Attached

2018 LOD Specification
Published September 2018 (2018 LOD Spec.), by AGC-BIMForum.

 

Link:
AGC-BIMForum_LOD-21_final_2017-12.pdf (Part 1 only)

Zip-file with Part 1 & Part 2 Excel Sheet Attached

2017 LOD Specification
Published November 2017 (2017 LOD Spec.), by AGC-BIMForum.

 

Link:
AGC-BIMForum_LOD-17_final_2017-11.pdf (Part 1 only)

Zip-file with Part 1 & Part 2 Excel Sheet Attached

2016 LOD Specification
Published October 2016 (2016 LOD Spec.), by AGC-BIMForum.

 

Link:

AGC-BIMForum_LOD-16_final_2016-10.pdf (Part 1 only)

Zip-file with Part 1 & Part 2 Excel Sheet Attached

2015 LOD Specification
Published October 2015 (2015 LOD Spec), by AGC-BIMForum.

 

Link:

AGC-BIMForum_LOD-15_final_2015-10.pdf (Part 1 only)

Zip-file with Part 1 & Part 2 Excel Sheet Attached

2014 LOD Specification
Published December 2014 (2014 LOD Spec), by AGC-BIMForum.

 

Link:

AGC-BIMForum_LOD-14_final_2014-12.pdf

2013 LOD Specification|
Published August 2013 (2013 LOD Spec), by AGC-BIMForum.

 

Link:

AGC-BIMForum_LOD-13_final_2013-10.pdf