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CAD Standards

The IO CAD Standard is a designed framework for applying standardization to digital Computer Aided Drafting (CAD) drawing files used by the various disciplines throughout Infrastructure Ontario. The IO CAD Standard Application is an add-in tool designed to be loaded into AutoCAD to assist consultants in delivering CAD drawings in accordance with the IO CAD Standard, tools to translate layers to the IO CAD Standard layers, run IO Drawing Audit report and batch process multiple drawings. Mandatory use of the IO CAD Standard will allow for conformity of digital data from various sources and support efforts to manage and exchange that data between internal staff, external consultants and service providers.

All drawings must adhere to the IO CAD Standards and must be accompanied by an audit. It is the responsibility of the Project Management team to ensure that this is complete. Please refer to the IO CAD Standard Guidelines PDF (and/or Summary Checklist) for instructions.

Passing audit reports produced by the tool are now considered a conditional pass as a manual audit will be performed by the IO Auditor after the drawings are submitted to ensure that all standards have been met. This manual audit will be the determining factor in whether the as-built submission of the project receives a pass or Fail. The manual audit will include items that cannot be verified by the tool. Example, layer usage (ex. Full height wall lines/objects to be on layer A-WALL-FULL).

The audit tool will verify the following title block information:

  • IO Project numbers (7 or 8 characters only) 
  • Building and site number and building address (verifies and updates as needed) 
  • The correct title block version (the most current IO title blocks are included and can be inserted into .dwgs through the plugin)
  • File name to be in Title Case, Each Word Is Capitalized not all UPPER CASE, while the drawing title in the title block is to be in UPPER CASE (see section 4.5 of the guidelines)
  • The correct floor number 

The audit tool updates include: 

  • Renamed passing tool audit report to conditional pass 
  • Generation of a single failing pdf report (previous versions would not)
  • Updated user guide documentation 
  • Updated title blocks to include a ministry PSIF field and a floor number field 
  • Cancel button added 
  • Removed MS access requirements 
  • 4 Year license agreement and Tech support 
  • AutoCAD LT and Microsoft Station are not supported 

For CAD Standards related inquiries please contact: IO.Workplace@BGIS.com 

NOTE:

  • If you are using AutoCAD 2025, use Version 9 of the audit tool
  • If you are using AutoCAD 2016-2022, use version 8.07 of the audit tool