What are instruments of service in architecture and engineering?

Instruments of service: the definition#

Instruments of service are the representations, in any medium, that an architect or engineer and its consultants prepare to provide professional services on a project. The term covers the familiar deliverables, such as drawings, specifications and building models, and also sketches, calculations and other documents prepared for that purpose.

The phrase comes from standard-form contracts in the design professions, which use it to say who owns the work product and who may use it. It describes a role in the contract rather than a file type: a PDF can be an instrument of service on one project and an internal working file on another.

Who owns instruments of service?#

Ownership of instruments of service is set by the contract and by copyright law, and the common default is that the design professional who authored them keeps the copyright. AIA B101-2017 Section 7.2, for example, deems the architect and its consultants the authors and owners of their instruments of service and reserves their rights, including copyrights. On the engineering side, the 2014 EJCDC E-500 owner-engineer form states that the engineer retains an ownership and property interest in its documents, including the copyright and the right of reuse, whether or not the project is completed.

The owner's side is a license, not ownership. B101 grants the owner a nonexclusive license to use the instruments of service solely for constructing, using, maintaining, altering and adding to the project, provided the owner substantially performs its obligations, including prompt payment. It does not give the owner the right to reuse the design on another site. Owner-drafted agreements, public-sector contracts and negotiated amendments can shift ownership to the client, and section numbers and wording vary by edition, so the signed agreement is the only reliable answer.

What the construction contract says about instruments of service#

The owner-contractor general conditions confirm that contractors use instruments of service but do not own them. AIA A201-2017 Section 1.5.1 states that the contractor, subcontractors and suppliers shall not own or claim a copyright in the architect's instruments of service, and Section 1.5.2 limits their use to performing the work, without reuse on other projects unless the owner, architect and consultants consent in writing.

A201 also provides that submitting or distributing instruments of service to meet official regulatory requirements, such as a permit filing, is not treated as publication in derogation of the architect's reserved rights. Drawings sitting in a building department's files are therefore not free for anyone to reuse.

Which project records count as instruments of service?#

Project records divide into two broad groups: instruments of service, which are prepared and issued to deliver the design, and firm operating records, which the firm keeps to run its work. The boundary matters because each group can carry different ownership, confidentiality and retention rules.

Some records sit in a gray zone. A written RFI response or a supplemental sketch issued to the contractor is part of the services delivered, while the log used internally to track RFIs, assign reviewers and measure turnaround is an operating record. Treat gray-zone items according to how the contract describes them.

Electronic instruments of service#

Electronic instruments of service are the same work product in digital form: Revit and other BIM models, CAD files, PDFs and model exports. Many contracts treat electronic files with extra caution, adding protocols or exhibits that limit how files may be transmitted, relied on and reused.

Common terms in digital data exhibits include stating which version governs if a printed set and a file differ, limiting reliance on models for quantities, and requiring the recipient to remove title blocks before reuse. Check these alongside the main agreement whenever electronic files are involved.

Electronic files also blur the line between issued and internal work. A Revit model holds worksets, design options and abandoned schemes that were never issued, so firms often treat only the issued model or export as the instrument of service and the working file as an internal record.

Why the distinction matters when licensing records#

The distinction between instruments of service and operating records matters for licensing because the two groups raise different questions. Even where a firm owns the copyright in its drawings, confidentiality obligations to the client and consultant rights may limit sharing them. Firm operating records are more often the firm's own, though they can still contain client confidential information.

For that reason, a licensing review usually starts with operating records such as QA/QC comments, review histories and timesheet narratives, then looks at instruments of service project by project. Before anything is decided, the review should check these points.

• 1The ownership and license clause in the signed agreement, including any owner amendments.
• 2Confidentiality clauses and how they define confidential information.
• 3Consultant agreements, since consultants usually own their own instruments of service.
• 4Owner-supplied information, such as surveys and reports, which the firm does not own.
• 5Digital data exhibits and any restrictions on electronic files.
• 6Public-sector or security-related projects, which often carry stricter limits.

Illustrative: a firm sorts its archive#

Illustrative: a fictional architecture firm that designs medical office and higher-education buildings wants to understand what its archive holds before a records retention review. The managing principal asks the operations team to sort a sample of completed projects into the two groups.

Drawings, specifications and Revit models go into the instruments of service group, tagged with each project's contract form and confidentiality terms. RFI tracking logs, internal QA/QC checklists, Deltek time narratives and lessons-learned notes go into the operating records group. Several projects with owner-drafted contracts are flagged because their ownership clause transfers documents to the client. The firm now knows which records need contract-by-contract review and which can be assessed as a group.

How SourceX approaches design records#

SourceX handles design records through the Rights step of the SourceX five-step transaction: Supply, Rights, Preparation, Approval and Delivery. Rights review looks at ownership clauses, confidentiality terms and consultant rights before any records are prepared, and records the firm cannot license are carved out.

This page is general information, not legal advice. Contracts and laws differ, and ownership and licensing questions are assessed deal by deal with counsel.