So, you’ve started wrapping your head around CMMC. You know there are different levels, you know certification is a must, and maybe you’ve even thought about getting started. But then, you hear terms like RPO, C3PAO, CCP, and CCA – it’s alphabet soup.
Who are all these people? What do they do? And how do they fit into your journey toward CMMC certification?
Let’s break it down…
The CMMC Ecosystem: A Quick Overview
CMMC is not just a checklist – it’s an entire framework built around helping businesses meet and verify cybersecurity standards. But because cybersecurity is complex (and because the government wants it done right), not just anyone can help companies prepare for certification.
Instead, there’s a structured ecosystem made up of different types of professionals and organizations, each with specific roles and clear boundaries on what they can and can’t do.
Here’s the big picture:
- Registered Practitioners (RPs) and Registered Provider Organizations (RPOs) help businesses prepare for CMMC. They can consult on compliance but cannot perform certification assessments.
- Certified Third-Party Assessor Organizations (C3PAOs) conduct the official CMMC assessments for certification – but they cannot provide consulting on how to get compliant.
- Certified CMMC Assessors (CCAs) and Certified CMMC Professionals (CCPs) are the people who actually perform assessments and help implement CMMC inside companies.
- The CyberAB Marketplace is where businesses go to find these experts.
Now, let’s dig into each role.
RPs and RPOs: The Coaches
Think of Registered Practitioners (RPs) and Registered Provider Organizations (RPOs) as the coaches of the CMMC world. They help businesses understand the requirements and get ready for certification.
Registered Practitioners (RPs)
An RP is an individual consultant trained in CMMC fundamentals. They work under an RPO (a company officially recognized by CyberAB) to help businesses improve their security and prepare for certification.
Registered Provider Organizations (RPOs)
An RPO is a company that specializes in helping businesses prepare for CMMC. They can:
- Conduct gap assessments (find what security measures you’re missing)
- Provide cybersecurity consulting
- Help implement security controls
- Assist with preparing documentation
What RPs and RPOs CANNOT Do:
- Perform official CMMC assessments
- Certify businesses for CMMC
RPOs prepare you for the real test, but they’re not the ones grading it.
C3PAOs: The Referees
If RPOs are the coaches, then Certified Third-Party Assessor Organizations (C3PAOs) are the referees.
C3PAOs are official assessment organizations that review businesses and determine if they meet CMMC Level 2 or higher. If you need an official certification, a C3PAO is the only one who can give it to you.
How the Assessment Works:
- The C3PAO reviews your security policies
- They test your cybersecurity measures
- They interview key staff
- If you pass, they certify your company
What C3PAOs CAN’T Do:
- Consult on how to get compliant
- Give you advice before the assessment
This means you can’t hire a C3PAO to help you prepare, and then have them audit you later – that would be a conflict of interest.
So, if you need help before your assessment, you’ll need to work with an RPO first.
CCPs and CCAs: The Players on the Field
Certified CMMC Professionals (CCPs) and Certified CMMC Assessors (CCAs) are the people inside these organizations who actually do the work.
Certified CMMC Professionals (CCPs)
A CCP is an entry-level CMMC consultant or assessor. They can:
- Work for RPOs (helping companies prepare)
- Assist with CMMC assessments under a CCA
CCPs are like CMMC apprentices – they help companies implement security, but they can’t perform assessments alone.
Certified CMMC Assessors (CCAs)
A CCA is a trained cybersecurity professional who can perform official CMMC assessments under a C3PAO. These are the people who come in, evaluate your security, and decide whether you pass or fail.
CCAs work only under a C3PAO – they cannot also work as a consultant for an RPO.
The CyberAB Marketplace: Where You Find Help
Now that you know who’s who, the next question is: Where do you find these experts?
That’s where CyberAB (formerly the CMMC Accreditation Body) comes in. They run the CyberAB Marketplace, which is the official directory of:
✔ RPOs that can help you prepare
✔ C3PAOs that can certify you
✔ CCAs and CCPs that can assess or consult
Why It Matters
The CyberAB Marketplace is important because:
- It ensures you’re working with qualified professionals
- It prevents conflicts of interest (so no shady assessments)
- It gives you a trusted place to find CMMC help
Using the Marketplace helps you avoid scammers who claim they can certify you (when they can’t). Only official C3PAOs can issue certifications!
How These Roles Work Together
To make this easier, let’s walk through a real-world example of a small defense contractor going through the CMMC process:
- The contractor realizes they need CMMC Level 2 to keep their DoD contracts.
- They hire an RPO to do a gap assessment and help them implement missing security controls.
- After getting their security in shape, they contact a C3PAO for their certification assessment.
- The C3PAO sends a CCA to conduct the audit.
- If they pass, they get certified and can keep bidding on DoD contracts.
At no point can the RPO perform the audit, and at no point can the C3PAO help them prepare – these roles must remain separate.
Final Thoughts: Who Do You Need? Agus is here to facilitate your CMMC journey:
- Need help preparing for CMMC?
- Need an official assessment?
- Need to find qualified professionals?
Check us out in the CyberAB Marketplace!
Understanding how these roles work together saves time, money, and headaches. If you get stuck, just remember: RPOs help, C3PAOs assess, and the CyberAB Marketplace is where you find them.
Next up in CMMC for Noobs: What is a Gap Analysis?
