Can add-on drawings be signed electronically?

Yes. Under the ESIGN Act and state UETA laws, electronic signatures generally bind parties when intent and consent are present. Retain a reproducible record and follow any consumer-disclosure requirements for consumer-facing transactions.

Do I need a notary or witness?

Most add-on drawings do not require notarization unless local permit or contract conditions mandate it. Check the contracting documents and local permitting authority for notarization or witness conditions.

What if parties disagree after issuance?

Preserve original dated copies, approvals, and linked RFIs/change orders. Dispute resolution will hinge on documented approvals, revision history, and whether price or schedule impacts were accepted in writing.

How should I store final signed drawings?

Store signed PDFs with audit trails in a secure document repository. Keep read-only archives and ensure backups for the required retention period per tax, HIPAA, or contractual rules.

Can revisions be retroactive?

Revisions are effective only as authorized. A drawing cannot retroactively validate work performed without a written change order or explicit owner authorization.

Who approves change-related costs?

Contract documents normally set approval authority. Costs typically require owner or designated representative sign-off documented in the change order or equivalent approval form.

Electronic Signature
Templates
Miscellaneous
Miscellaneous Add On Drawings

Miscellaneous Add On Drawings

This template is fully customizable. Edit the text, fill out the fields, and send it for signature. Give it a try!

MISCELLANEOUS ADD ON DRAWINGS

This Miscellaneous Add On Drawings Agreement ("Agreement") is entered into as of by and between:

Client Name: Contractor / Designer Name:

RECITALS

WHEREAS, Client has an existing project for which additional or revised drawings, details, and related design documents are required (the "Project"); and

WHEREAS, Contractor possesses the professional capability to prepare such additional drawings and related deliverables and is willing to prepare the Add On Drawings under the terms set forth herein; and

NOW, THEREFORE, in consideration of the mutual covenants contained in this Agreement, the parties agree as follows:

1. SCOPE OF WORK

Describe Add On Drawings and Services:

Deliverables shall include, at minimum, the number of drawing sheets specified below and associated electronic files in the agreed format. Contractor shall confer with Client to determine any site-specific requirements prior to initiation of work.

Number of Drawing Sheets / Revisions:

Delivery Format (select all that apply): Electronic (PDF, DWG) Printed hard copy Other (describe)

2. PAYMENT TERMS

Client shall pay Contractor for the Scope of Work as set forth below. All amounts are payable in U.S. currency unless otherwise agreed in writing.

Total Fee for Add On Drawings: Payment Schedule / Milestones: Deposit Required (if any): Late Payment Fee:

All invoices are due upon receipt unless otherwise stated. Unpaid amounts shall accrue interest at the rate specified above and Client shall be responsible for reasonable collection costs, including attorneys' fees, if payment enforcement becomes necessary.

3. TERM AND TERMINATION

This Agreement shall commence on and shall continue until unless earlier terminated in accordance with this Section.

Termination Notice Period:

Either party may terminate this Agreement for material breach by the other party if such breach is not cured within the notice period specified above following written notice. Termination shall not relieve Client of the obligation to pay for services rendered and costs incurred through the effective date of termination.

4. CONFIDENTIALITY

Each party acknowledges that, in the course of performance, it may receive Confidential Information of the other party. "Confidential Information" means non-public business, technical and financial information designated as confidential or which, by its nature, should reasonably be considered confidential. Each party shall: (a) use Confidential Information solely to perform its obligations under this Agreement; (b) restrict disclosure to those employees, agents or consultants with a need to know; and (c) protect Confidential Information with at least the same degree of care used to protect its own confidential information but no less than a reasonable standard of care.

Exclusions (common legal exceptions):

5. INTELLECTUAL PROPERTY

Subject to full payment of all fees due under this Agreement, Contractor grants Client a non-exclusive, perpetual license to use the Add On Drawings for the Project for which they were prepared. Contractor retains the copyright to the drawings and may use general knowledge and non-identifying design concepts in future work unless ownership transfer is expressly provided below.

If full ownership of deliverables is required, specify terms:

6. WARRANTIES; LIMITATION OF LIABILITY

Contractor warrants that the deliverables will be prepared with reasonable professional skill and care in accordance with generally accepted industry standards. EXCEPT AS EXPRESSLY STATED IN THIS SECTION, CONTRACTOR MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED. IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL, SPECIAL OR PUNITIVE DAMAGES. CONTRACTOR'S AGGREGATE LIABILITY FOR ANY CLAIM ARISING OUT OF THIS AGREEMENT SHALL NOT EXCEED THE TOTAL FEES PAID BY CLIENT TO CONTRACTOR UNDER THIS AGREEMENT.

7. GOVERNING LAW

This Agreement shall be governed by and construed in accordance with the laws of without regard to its conflict of laws principles.

8. ENTIRE AGREEMENT

This Agreement, including any attachments and referenced exhibits, constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior and contemporaneous agreements, proposals and communications, whether written or oral. Any modification of this Agreement must be in writing and signed by duly authorized representatives of both parties.

9. NOTICES

All notices required or permitted under this Agreement shall be in writing and delivered to the addresses below by hand, certified mail, or nationally recognized courier service, and shall be effective upon receipt.

Client Notice Address: Contractor Notice Address:

Client Printed Name:

By:

Date:

Contractor Printed Name:

By:

Date:

What Miscellaneous Add On Drawings Are and when they’re used

Miscellaneous Add On Drawings are supplemental technical drawings or plan sheets attached to a primary contract or project package to document additional scope, detail, or clarifications not included in the main construction or design drawings. They commonly include detail views, revised dimensions, single-discipline addenda, or small-scope change diagrams that alter deliverables, quantities, or installation instructions. These drawings are treated as contract appendices when referenced in change orders, purchase orders, or amendment clauses and should be dated, numbered, and cross-referenced to the principal drawing set to avoid ambiguity during bidding, permitting, or construction.

Why clear Miscellaneous Add On Drawings matter

Well-prepared add-on drawings reduce interpretation errors, limit rework, and record scope changes that affect cost and schedule. They provide an auditable record when used with change orders or payment applications.

Typical parties involved with add-on drawings

Multiple stakeholders encounter these drawings during project execution, from designers to field teams.

Design consultants and architects — prepare or approve technical clarifications and ensure consistency with contract documents.
Contractors and subcontractors — review drawings to price, schedule, and perform the work shown on addenda.
Owners and project managers — authorize changes, accept cost/schedule impacts, and retain the drawings for project records.

Each party should keep a dated copy and confirm whether the drawing modifies contract price, schedule, or performance standards.

Core elements that make an add-on drawing professional

A professional Miscellaneous Add On Drawing clearly ties to the original contract drawing set, contains precise dimensioning, and lists revision control details so reviewers can confirm intent and authority for change.

Title Block

Include project name, drawing title, unique addendum number, revision letter, author, and date to ensure traceability and contract reference.

Revision Note

Summarize the change in one sentence and reference the originating RFI, change order, or instruction number for audit purposes.

Scale and Dimensions

Provide scale, precise dimensions, tolerances, and material callouts so the field team can fabricate or install without additional clarification.

Cross-References

List related sheet numbers, detail views, and specifications so the drawing can be read in context with the main set.

Approval Block

Include signature/initials, approver name, role, and date to evidence authorization and acceptance of the change.

Notes and Limits

Add scope limits, exclusions, and any sequence constraints that affect installation, inspection, or testing activities.

How to prepare and issue a Miscellaneous Add On Drawing

Follow a consistent workflow from creation through approval to ensure the drawing becomes an enforceable part of the project record.

01

Draft the Add-On: Create the drawing with full dimensions and notes.
02

Cross-Check Scope: Compare against existing drawings and specs for conflicts.
03

Document Authorization: Attach RFI or change order approvals where required.
04

Distribute and Archive: Send to stakeholders and retain dated copies.

Digital workflow settings for online completion and routing

Configure your eDocument workflow to capture approvals, maintain revision history, and automate distribution to stakeholders.

Field	Configuration
Version Control	Enable automated revision tracking and file versioning.
Approval Order	Set role-based sequential approvals (Engineer → PM → Owner).
Notifications	Activate email/SMS alerts for new revisions and approvals.
Retention	Archive signed copies with immutable audit trails.

Typical route from sketch to contract-addendum

The process moves from identification of a need through drafting, review, authorization, and distribution with a preserved audit trail at each step.

Identify Change: Field or design team flags an omission or correction.
Produce Drawing: Designer prepares the add-on sheet with details.
Authorize Change: Owner or authorized rep approves cost/schedule impacts.
Issue Revision: Distribute to contractors and update contract records.

Delivery and file-format considerations for electronic add-on drawings

Choose formats and platforms that preserve vector detail, layer structure, and revision metadata.

Preferred Formats: PDF/A or PDF (vector) preserves scale and annotations.
Integration Needs: Support for AutoCAD exports, DOCX notes, and cloud storage.
Access Controls: Role-based permissions for viewing and signing.

Ensure the chosen platform captures an audit trail and stores signed versions in read-only format for future reference.

Best practices for accuracy and defensibility

Adopt these practices to reduce ambiguity and speed approvals while maintaining an auditable record of changes.

Use a single numbering system

Maintain one project-wide add-on numbering convention so every revision and addendum is uniquely identifiable and searchable.

Link to approvals

Reference RFI, change order, and approval IDs directly on the drawing to establish provenance and support chargeability.

Preserve signed PDFs

Store final signed drawings as read-only PDF/A with an audit trail to prevent tampering and preserve metadata.

Confirm field interpretation

Request a short field confirmation or punch-list entry when the drawing affects critical tolerances or interfaces.

Common pitfalls when preparing add-on drawings

Unclear scope language that omits which contract line items are affected, causing disputes over cost and responsibility.
Missing revision control or undated sheets that make it impossible to determine the effective change sequence for claims.
Failure to attach authorizing RFI or change order, which can lead to non-payment or rejection during invoicing.
Distributing raster images instead of vector PDFs, which can obscure dimensions and lead to fabrication errors.

Consequences of incorrect or unauthorized add-on drawings

Contract Disputes: Delay claims and payment disputes

Rework Costs: Additional labor and material expenses

Permit Rejection: Local authorities may reject filings

Liability Exposure: Potential professional liability claims

Schedule Impact: Project completion delays

Record Deficiencies: Weak evidence if litigation arises

Key dates and timing to track when issuing add-on drawings

Track authorization and distribution dates closely; they determine liability, change order timing, and permit acceptance.

Issue Date:

Date the drawing is released; starts effectivity.

Approval Cutoff:

Deadline to approve for inclusion in a pay application.

Permit Submission:

Deadline aligned to permit revision cycles.

Field Implementation:

Date when crews must follow the change.

Record Archive:

Date by which signed copy must be archived.

Real-world examples of add-on drawings in practice

The following condensed examples show how add-on drawings function as contract documents and project controls.

Construction Change

A contractor identifies a coordination clash on an MEP route and requests an RFI.

The engineer issues an add-on drawing showing revised routing.
The drawing is dated, references RFI-27, and is signed by the engineer and owner representative; it becomes part of CO-05 for a $7,200 adjustment and retained for closeout records.

As-Built Correction

An inspector notes a discrepancy between installed piping and contract drawings.

The design team issues an add-on to correct dimensions.
The add-on is stamped, initialed, and distributed to subcontractors and the permitting authority to secure final occupancy and warranty documentation.

eSignature vendor comparison for signing and distributing add-on drawings

Comparison of common vendor criteria relevant to signing, bulk distribution, and HIPAA or audit requirements; signNow is listed first per page conventions.

	signNow	DocuSign	Adobe Sign	PandaDoc	HelloSign
Starting Price	$8/user/mo	$15/user/mo	$14/user/mo	$19/user/mo	$15/user/mo
Free Trial	Yes, 7-day trial	No	No	Yes, limited	Yes, limited
Bulk Send	Yes	Yes	Yes	Yes	No
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No

Frequently asked questions and common troubleshooting topics

Answers below address frequent points of confusion when preparing, signing, or storing Miscellaneous Add On Drawings.

Need help? Contact support

Can add-on drawings be signed electronically?
Yes. Under the ESIGN Act and state UETA laws, electronic signatures generally bind parties when intent and consent are present. Retain a reproducible record and follow any consumer-disclosure requirements for consumer-facing transactions.
Do I need a notary or witness?
Most add-on drawings do not require notarization unless local permit or contract conditions mandate it. Check the contracting documents and local permitting authority for notarization or witness conditions.
What if parties disagree after issuance?
Preserve original dated copies, approvals, and linked RFIs/change orders. Dispute resolution will hinge on documented approvals, revision history, and whether price or schedule impacts were accepted in writing.
How should I store final signed drawings?
Store signed PDFs with audit trails in a secure document repository. Keep read-only archives and ensure backups for the required retention period per tax, HIPAA, or contractual rules.
Can revisions be retroactive?
Revisions are effective only as authorized. A drawing cannot retroactively validate work performed without a written change order or explicit owner authorization.
Who approves change-related costs?
Contract documents normally set approval authority. Costs typically require owner or designated representative sign-off documented in the change order or equivalent approval form.

be ready to get more

Join over 28 million airSlate SignNow users

Sign Now