A Guide to Construction Drawings - Minor Revisions (In Field) - Overview

Oct 28, 2026

Upload by jayni

A Guide to Construction Drawings - Minor Revisions (In Field) defines the CD-MR (In Field) process introduced to replace an ad hoc workflow with a formal, structured approach. It explains eligibility for minor changes, key exclusions, and examples, then details submission quality assurance requirements, business rules for activation and concurrency, and electronic submission through ApplyCentral. It also covers two CD-MR types (Industry Initiated and Field Order Initiated), required materials, review and response timelines, category selection, and circulation steps after approval.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages3

Reading Time8 min

AccessFree to download

CD-MR (In Field) Process Overview

Purpose and Background

When a Change Can Be Considered Minor

Examples of CD-MRs

Submission Quality Assurance (QA/QC)

Business Rules

CD-MR Types and Rules

Industry Initiated CD-MR (CD-MRI)

Field Order Initiated CD-MR (CD-MRF)

Submission Requirements for All CD-MRs

Approval Workflow and Circulation

March 2024 A Guide to Construction Drawings – Minor Revisions (In Field) Construction Drawings – Minor Revisions (CD-MR) is a new, Development Engineering-only process, developed to: • Create more efficiency by formalizing and structuring the current “ad hoc” process. • Provide better customer service to Applicants. • Coordinate efforts within internal approving Business Units. • Structures information pertaining to minor revisions which can be used for both CCC and FAC processes. As of 2023, approval of the Minor Revision (In Field) process will constitute fulfillment of the formal CCC requirement. This update can be retroactively applied to all Construction Drawing submissions which are still awaiting CCC approvals. For an application to be considered minor: • It must only affect Development Engineering i.e. , one Business Unit. • If the change requires a revision to the Subdivision Stormwater Management Report, it will not be considered minor. • Design changes to construction cannot be outside the construction boundary. o To be considered minor, all changes must be within the established construction boundary. • Line Assignment change(s) are not a minor revision. • Minor changes should not contravene any design guidelines or specifications. Examples of CD-MRs: • Drafting errors. • Proofing documentation pertaining to a product, installation can be considered minor. • Move of a catch basin that does not result in a change of the catchment area. • Move or relocation of a hydrant, valve. • Manhole type change. • Slope change for a short segment of pipe. • Field Orders issued for specification issues such as materials and construction methods. • Minor changes required due to unexpected site conditions. Submission Quality Assurance All with the other ApplyCentral processes, all criteria must be met in order for a submission to pass QA/QC. • All documents are to be provided. • Documents are clear and legible. • Engineering stamps are clear. • Dates are accurate (i.e. , the checklist date aligns with the correct submission) . • All statements on the checklist are addressed/acknowledged (i.e. , circled) . No partial submissions will be accepted. Business Rules The CD-MR process will not be activated if an E-CD is in circulation, and only one CD-MR process can be active at onetime. CD-MRs will only be accepted electronically through ApplyCentral, due to the process being Development Engineering-only. There are two types of CD-MRs: • Industry Initiated (CD-MRI) • Field Order Initiated (CD-MRF) Industry Initiated CD-MR • Applicants can receive approval for up to 3 CD-MRIs. • Once a maximum of 5 approved Industry Initiated CD-MRs is reached, a full set of drawings will be required to be submitted to Calgary Approvals Coordination (CAC) for circulation. • CD-MRIs will go through the Development Engineering QA/QC process and still require the engineering stamp, signatures, required documentation of the cover letter and at least one drawing with the change indicated, clouded. • Additional information as required, such as pictures, manufacturer information, etc. • A maximum of 10 additional drawings, 10 pictures, etc. will be accepted. Field Order Initiated CD-MR • If a CD-MR (In Field) is initiated by Subdivision Development Inspections, the signed Field Order issued by the Inspector must be included with the CD-MRF submission by the Applicant. • A maximum of 15 field orders will be accepted with any CD-MRF submission. o Approvals are “all or none”. E.g., if 15 Field Orders are submitted and two are considered not being approved, the whole submission will be rejected. The Applicant can then submit another CD-MRF with the 13 that were approved as a brand new submissions. There are no iterations with CD-MR submissions. • If the Applicant would like to address multiple minor revisions on one drawing, the requirement is that it must only affect Wate

FAQs

What changes are considered minor under the CD-MR (In Field) process?

A change must affect Development Engineering only (one Business Unit) and stay within the established construction boundary. Revisions that require changes to the Subdivision Stormwater Management Report are not considered minor, and design changes cannot go outside the construction boundary.

How are CD-MRs submitted and what QA/QC checks must be passed?

CD-MRs are accepted only electronically through ApplyCentral. Submissions must include all documents, be clear and legible, have clear engineering stamps, contain accurate dates, and ensure all checklist statements are addressed/acknowledged; partial submissions are not accepted.

What are the differences between Industry Initiated and Field Order Initiated CD-MRs?

Industry Initiated CD-MR (CD-MRI) allows applicants up to 3 approvals, with escalation to a full drawing set circulation after 5 approved CD-MRIs. Field Order Initiated CD-MR (CD-MRF) requires the signed Field Order from the inspector, allows a maximum of 15 field orders, and is subject to “all or none” approval with no iterations.

Oct 28, 2026

Upload by jayni