# Architect's Coordination of Consultants - Basic or Supplemental Service?

**URL:** <https://community.blackspectacles.com/t/architects-coordination-of-consultants-basic-or-supplemental-service/7073>\
**Category:** Project Management\
**Tags:** contract-documents, virtual-workshops\
**Created:** [June 18, 2025, 8:04pm UTC](https://community.blackspectacles.com/t/architects-coordination-of-consultants-basic-or-supplemental-service/7073 "2025-06-18T20:04:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kiaragalicinao](https://yyz1.discourse-cdn.com/flex029/user_avatar/community.blackspectacles.com/kiaragalicinao/32/1607_2.png) [@kiaragalicinao](https://community.blackspectacles.com/u/kiaragalicinao)\
**Post date:** [June 18, 2025, 8:04pm UTC](https://community.blackspectacles.com/t/architects-coordination-of-consultants-basic-or-supplemental-service/7073/1 "2025-06-18T20:04:39Z")

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Hello PcM/PjM studiers!

We received the following question during a recent PjM [**Virtual Workshop**](https://learn.blackspectacles.com/virtual-workshops), hosted by @coachpierceallston, and it is a very common question that arises:

**Is the architect’s coordination of consultants a basic or supplemental service?**

According to _AIA B101_:

> _§ 3.1.2 The Architect shall **coordinate its services** with those services provided by the Owner and the Owner’s consultants…_ (Under Article 3: Scope of Architect’s Basic Services)

> _§ 4.1.1.20 Architect’s **coordination of the Owner’s consultants** _ (Under § 4.1 Supplemental Services)

Therefore, it is a **basic service** for the architect to _coordinate its own services with those provided by the owner and owner’s consultants_. If the architect were to _coordinate the actual work of the owner’s consultants_, that would be considered a **supplemental service**.

Check out this previous thread, where a member and I had discussed some examples of these different levels of coordination in relation to the contractual language:

> [@Architect coordinating with Owner's Consultant](https://community.blackspectacles.com/t/architect-coordinating-with-owners-consultant/5972):
>
> Regarding the coordination of the Owner’s Consultant’s work as outlined in the AIA B101 document. Specifically, I need clarification on the differences between Article 3.1.2 and Article 4.1.1.20. My understanding and what I encountered in one of the mock exams are as follows: • Article 3.1.2: The architect is responsible for coordinating their work with the Owner’s Consultant that if the owner has only one consultant, the architect will incorporate the consultant’s drawings into their own as a…

Our PcM Lecture Video: **[Contracting with Consultants Using C401](https://learn.blackspectacles.com/courses/1e06dd5f-2328-11ef-9c4f-02161524d561/video/cae4dfb9-2327-11ef-9c4f-02161524d561)** (Objective 2.1) and PjM Lecture Video: **[Coordinating With Owner’s Consultants](https://learn.blackspectacles.com/courses/1e06df12-2328-11ef-9c4f-02161524d561/video/cba45b2f-2327-11ef-9c4f-02161524d561)** (Objective 3.4) dive deeper into the contractual relationships and responsibilities of architect, owner, and consultant.

**Tip:** All ARE candidates can access free AIA contracts through their **[NCARB Record](https://www.ncarb.org/)**. After signing in, go to _Exams_ tab, navigate to _Additional Resources_ → _ARE Resources_ → _AIA Contract Docs_.

Demystifying contractual language can be tricky! However, understanding the terms of the contracts as they relate to roles and responsibilities of each party is key for the ARE (specifically PcM, PjM, and CE).

**Do you have a go-to method for parsing dense contractual language—like underlining, margin notes, color-coding, or flashcards?**

Kiara Galicinao, AIA, NCARB  
Product Coordinator  
**[Black Spectacles](https://www.blackspectacles.com/en-us/)**
