ASTM E2018 and the ComSOP: How Two Standards Work Together
If you're working with a commercial lender or attorney on a property acquisition, you've likely heard the requirement for a "PCA per ASTM E2018." The standard's name appears in loan commitment letters, purchase agreements, and due diligence checklists. But what most buyers — and even some professionals — don't realize is that ASTM E2018 is intentionally broad. It establishes a framework and a set of expectations, but it leaves significant room for interpretation in how the actual inspection is conducted.
That's where the ComSOP comes in. Understanding how these two standards relate to each other is essential for anyone who wants to know what they're actually getting when they order a Property Condition Assessment.
What ASTM E2018 Actually Is — and Isn't
ASTM E2018 is published by ASTM International as a "Standard Guide" — and that classification matters. In the ASTM system, a guide is explicitly less prescriptive than a standard practice or standard method. Guides describe a range of options and general approaches; they do not specify a single required procedure. ASTM E2018 uses "should" language throughout, indicating recommended practice rather than mandatory requirement.
The full title tells you what it covers: Standard Guide for Property Condition Assessments: Baseline Property Condition Assessment Process. The word "baseline" is significant — ASTM E2018 describes a minimum floor, not a ceiling. It tells you what categories of building systems should be observed, what deliverables the report should contain, and how findings should generally be characterized. What it does not do is specify exactly how each system should be inspected, what specific conditions to look for, or how findings should be rated and documented at the individual component level.
This openness is intentional. The ASTM standard was designed to be flexible enough to apply to any commercial property type across the country. But it means that two inspectors, both claiming to follow ASTM E2018, can produce reports of very different depth and quality without either technically violating the standard.
Where the ComSOP Fills the Gap
The Commercial Standard of Practice (ComSOP), published by the Certified Commercial Property Inspectors Association (CCPIA), is the operational complement to ASTM E2018. While ASTM E2018 defines the what and why of a Property Condition Assessment, the ComSOP defines the how.
The ComSOP is prescriptive in a way that ASTM E2018 is not. It specifies which systems must be inspected, what components within each system must be observed, what conditions constitute a reportable finding, and how findings must be documented and categorized. It covers more than fifteen major building system categories — structural systems, roofing, plumbing, electrical, HVAC, building envelope, life safety, interior finishes, site and grounds, and more — with detailed scope requirements for each.
Critically, the ComSOP also defines what is outside the inspection scope, which is equally important for managing client expectations and establishing the boundaries of inspector liability. This kind of explicit scoping is something ASTM E2018 largely leaves to the inspector's judgment.
How They Work Together
The relationship between the two standards is complementary rather than competitive. ASTM E2018 is the framework that the commercial real estate industry — lenders, attorneys, investment managers, and appraisers — recognizes and requires. It's the common language that allows a lender in New York to specify what kind of report they need from a property in California without knowing who will perform the inspection.
The ComSOP is the methodology that gives that framework its substance. An inspection performed to ComSOP standards automatically satisfies and, in most respects, exceeds the scope contemplated by ASTM E2018. A CCPIA-certified inspector working from the ComSOP produces a report that meets what lenders require under ASTM while providing the systematic rigor that the ASTM standard alone does not guarantee.
Think of it this way: ASTM E2018 tells your lender that the inspection was performed to a recognized due diligence framework. The ComSOP tells you that the inspector who performed it followed a rigorous, specific methodology — not just a general checklist.
Why This Distinction Matters for Buyers
When a lender requires a "PCA per ASTM E2018," they are specifying a report format and scope category. They are not specifying a particular inspection methodology — and unless the inspector is working from a standard as specific as the ComSOP, the actual depth of the inspection is highly variable.
This is why the inspector's certification matters as much as the report's title page. A ComSOP inspection from a CCPIA-certified inspector satisfies ASTM E2018 requirements because it covers everything ASTM requires — and goes further in terms of systematic methodology, scope clarity, and documentation standards.
For buyers, this has a practical implication: when you receive an inspection report labeled "Property Condition Assessment per ASTM E2018," the right question is not just whether the format is correct, but whether the inspector followed a rigorous, defined methodology. At Primo, that methodology is the ComSOP — the most specific and comprehensive inspection standard available for commercial properties.
A Note on Report Structure
A full Property Condition Assessment under ASTM E2018 typically includes three components: the core Property Condition Report (PCR) covering all building systems; an ADA accessibility evaluation; and an Opinions of Probable Cost, which translates inspection findings into estimated remediation costs and a long-term capital expenditure schedule. The ComSOP governs how the core inspection is performed; ASTM E2018 governs how the overall package is structured and delivered.
Not every transaction requires all three components. Primo helps clients determine the right scope for their specific property, financing, and due diligence requirements — and ensures that whatever scope is agreed upon is executed to the highest methodological standard.