CAx Recommended Practices Archive
Here you can access previous versions of CAx Recommended Practice documents, for instance to validate older STEP files against the correct guidelines. The applicable versions of Recommended Practices are typically listed in the header section of each STEP file (Part 21 and XML).
AP242 Domain Model XML Kinematics
| Document | Release Date |
|---|---|
| Version 1.2 (current) | 2024-01-11 |
| Version 1.1 | 2022-11-18 |
| Version 1.0 | 2021-11-26 |
AP242 Domain Model XML Product & Assembly Structure
| Document | Release Date |
|---|---|
| Version 3.2 (current) | 2024-01-11 |
| Version 3.1 | 2022-11-18 |
| Version 3.0 | 2021-11-23 |
| Version 2.2 | 2020-09-30 |
| Version 2.1 | 2019-12-20 |
| Version 2.0 | 2018-10-30 |
| Version 1.2 | 2017-06-30 |
| Version 1.1 | 2016-05-20 |
| Version 1.0 | 2015-02-13 |
Composite Materials
| Document | Release Date |
|---|---|
| Version 4.2 (current) | 2021-08-17 |
| Version 3.4 | 2017-06-13 |
| Version 1.1 | 2010-07-15 |
Geometric & Assembly Validation Properties
| Document | Release Date |
|---|---|
| Version 4.6 (current) | 2023-04-21 |
| Version 4.5 | 2019-08-22 |
| Version 4.4 | 2016-08-17 |
| Version 4.2 | 2014-10-09 |
| Version 3.2 | 2012-12-18 |
| Version 3.1 | 2011-10-19 |
Model Styling & Organization
| Document | Release Date |
|---|---|
| Version 1.9 (current) | 2021-03-08 |
| Version 1.8 | 2020-05-29 |
| Version 1.6 | 2018-08-27 |
| Version 1.5 | 2016-08-15 |
| Version 1.4 | 2014-01-23 |
| Version 1.2 | 2011-12-15 |
| Version 1.1 | 2011-09-05 |
PMI Polyline Presentation (AP203 / AP214)
| Document | Release Date |
|---|---|
| Version 2.3 (current) | 2014-10-13 |
| Version 1.0 | 2008-06-16 |
PMI Representation & Presentation (AP242)
| Document | Release Date |
|---|---|
| Version 4.1 (current) | 2024-06-20 |
| Version 4.0.8 | 2020-09-04 |
| Version 4.0.6 | 2019-08-15 |
| Version 4.0.4 | 2016-09-01 |
| Version 4.0 | 2014-10-13 |
STEP File Compression
| Document | Release Date |
|---|---|
| Version 1.3 (current) | 2023-04-12 |
| Version 1.2 | 2016-08-15 |
| Version 1.1 | 2013-11-21 |
| Version 1.0 | 2013-02-12 |
Supplemental Geometry
| Document | Release Date |
|---|---|
| Version 1.2 (current) | 2021-07-09 |
| Version 1.1 | 2019-08-23 |
| Version 1.0 | 2011-11-01 |
Tessellated 3D Geometry
| Document | Release Date |
|---|---|
| Version 1.1 (current) | 2019-08-22 |
| Version 1.0 | 2015-12-17 |
User Defined Attributes
| Document | Release Date |
|---|---|
| Version 1.8 (current) | 2021-02-18 |
| Version 1.7 | 2020-08-25 |
| Version 1.5 | 2016-08-15 |
| Version 1.4 | 2015-07-20 |
| Version 1.3 | 2014-10-09 |
| Version 1.0 | 2011-10-14 |