BIMForum Global 2023 LOD Specification

The BIMForum Global 2023 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

2022 LOD Specification (BIMForum.Global/LOD)

The BIMForum Global 2022 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.

2022 Especificación LOD [Español/Spanish] (BIMForum.Global/LOD)

La Especificación LOD del BIMForum Global 2022 (Especificación LOD) es una herramienta de referencia que ayuda a mejorar la calidad de la comunicación entre los Propietarios de Proyectos y sus equipos que utilizan Modelos de Información de Construcción (BIM) en sus proyectos. Lo consigue aclarando las 5 características clave de la definición de los Elementos del Modelo MEs).

La especificación pretende ser compatible para los equipos que trabajan con definiciones de Nivel de Detalle y Nivel de Desarrollo. La confusión de estos dos términos con las mismas siglas debe aclararse en cada Plan de Ejecución BIM del Proyecto (PEP). La versión inglesa de este documento se ha elaborado para que sea compatible con las definiciones de LOD más comunes en EE.UU. y en otros países. La especificación también está pensada para permitir a los equipos de proyecto ajustar su uso de la Especificación Global BIMForum indicando cualquier enmienda a las definiciones de LOD que los equipos puedan tener en la sección BIM de su Plan de Ejecución del Proyecto. Esto también permite a esos equipos utilizar definiciones de Nivel de Detalle si eso es lo que se prescribe en su PEP BIM.

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

(Pennsylvania-BIMForum) 

Published December 2023, by Pennsylvania-BIMForum.
New Graphics were developed that are different from the copyrighted original LOD graphics that only BIMForum.Global is licensed to use.  

This publication added some landscape sections that are similar to the land scape content that was originally developed in the BIMForum Global 2022 LOD Specification.  

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

Published December 2022, by Pennsylvania-BIMForum. 
No graphics were provided in this supplement.  

 

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

Link: Pennsylvania-BIMForum_LOD-21_final_2021-12-28

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

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

Notes: Ascend Building Knowledge Foundation owned some content in this publication which was developed in early 2017 and whose logo appears on the cover of the document. Other contributors also own content that appears throughout the document.

The first paragraph of page 4 of this specification by the Pennsylvania-BIMForum clearly states the ownership of intellectual property and references Ascend Building Knowledge Foundation as well as other content creators who have since licensed their content to BIMForum Global for its use in developing new documents.

From a text search of the Pennsylvania-BIMForum 2021 LOD specification, there are approximately 296 graphics in this 2021 LOD Specification, and approximately 270 of them are not owned by the Pennsylvania-BIMForum per their own publication (first paragraph on page 4 of this 2021 spec.). Ascend and BIMForum Global has obtained permission from the content owners to use this content in BIMForum Global future documents. No other groups have written permission currently from Ascend or BIMForum Global to use content from Ascend in future editions of their documents.

 

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

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

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

Notes: Ascend Building Knowledge Foundation (Ascend) owned some content in this publication and its logo is shown on the cover of the document. Other contributors also owned their respective content that is sited throughout the document (2020 LOD Spec.) who have since licensed this content to BIMForum Global for future documents.

No other groups have written permission currently from Ascend or BIMForum Global to use content from Ascend I future editions.

 

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