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CMMC COMPLIANCE FOR TIER 1 SUBCONTRACTORS

CMMC Compliance for Tier 1 Subcontractors

Tier 1 defense subs carry prime obligations without prime-scale resources. We deliver CMMC Level 2 readiness and flow-down governance for your Tier 2/3 suppliers.

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Why Tier 1 Subcontractors Companies Need CMMC Compliance

Tier 1 defense subcontractors sit directly below the primes. You receive programs from Lockheed, Boeing, Northrop, Raytheon, and General Dynamics and turn around and flow that work to Tier 2 and Tier 3 suppliers. Every CUI artifact that touches your environment is flow-down under DFARS 252.204-7012 and is in scope for CMMC Level 2.

Tier 1 subs also inherit flow-down obligations. DFARS 252.204-7021 requires you to flow CMMC requirements to every sub you contract with. That means you need not only your own readiness program but a supplier assurance process capable of tracking dozens or hundreds of downstream subs.

The resource gap is the real problem. Tier 1 subs typically run on leaner IT and security teams than primes, while facing the same technical requirements.

We build CMMC programs for Tier 1 subs that achieve Level 2 readiness at Tier 1 scale and add the flow-down governance you need to manage your downstream supply chain.

2.1x
higher win rate on new DoD awards for Tier 1 subs that hold current CMMC Level 2 certifications versus those without.

Our CMMC Services for Tier 1 Subcontractors

End-to-end CMMC consulting tailored to Tier 1 subs. Whether you are starting from scratch or preparing for your C3PAO assessment, we meet you where you are.

Tier 1 Gap Assessment

Full NIST 800-171 review across program and enterprise environments with an SPRS-ready report.

Readiness Assessment

Mock C3PAO review.

Policy & Documentation

SSP, POA&M, and Tier 1 policies for program management, supplier flow-down, and CUI handling.

Technical Controls Implementation

MFA, FIPS encryption, segmented enclaves, audit logging.

Supplier Flow-Down Governance

DFARS 7021 flow-down, supplier scorecarding, and SPRS tracking.

C3PAO Certification Support

Mock audits and on-site support.

Which CMMC Level Do You Need?

The CMMC level you need is dictated by the information you handle under your DoD contracts. Here is how CMMC 2.0 breaks down for Tier 1 subs.

Level 1

Foundational

  • 17 basic safeguarding practices from FAR 52.204-21
  • For contractors that handle Federal Contract Information (FCI) only
  • Annual self-assessment with senior-official affirmation in SPRS
  • No CUI in scope
Level 2 — Most Common for Tier 1 Subcontractors

Advanced

  • All 110 controls from NIST SP 800-171 Rev. 2
  • Required for any contractor that stores, processes, or transmits CUI
  • Third-party C3PAO assessment every three years
  • The level most Tier 1 subs will need
Level 3

Expert

  • All Level 2 controls plus selected NIST SP 800-172 enhanced requirements
  • Required for contractors on the DoD's highest-priority programs
  • Government-led DIBCAC assessment every three years
  • Applies to a narrow set of contractors

Tier 1 subs need Level 2 in nearly all cases. Some may carry Level 3 obligations on specific Priority Programs. We will review your contracts and DFARS clauses with you at no cost to confirm.

CUI We Protect for Tier 1 Subs

Under NIST SP 800-171 and DFARS 252.204-7012, every one of these artifacts is typically CUI when tied to a DoD contract. Each one is in scope for CMMC Level 2.

Program Technical Data

Prime-furnished TDPs for defense programs.

Source Code & Firmware

Embedded software tied to defense programs.

System Design & ICDs

Interface control documents and architecture artifacts.

Test & Qualification Data

DT&E and qualification results.

Supplier & AVL Data

Approved vendor lists and sub performance data.

Contract & Proposal Data

Prime POs, SOWs, and proposal data citing DFARS clauses.

2.1x
higher win rate for Tier 1 subs with CMMC
74%
of Tier 1 subs lack a formal downstream flow-down process
8-12 Mo
typical Level 2 readiness timeline for Tier 1
110
NIST 800-171 controls at Level 2

Our 5-Step CMMC Process for Tier 1 Subcontractors

1

Initial Consultation

Scope enterprise and program-level CUI.

2

Gap Analysis

Control-by-control review.

3

Remediation Planning

Prioritized roadmap.

4

Implementation

Deploy controls, author policies, train team.

5

Assessment Support

Mock audits and on-site C3PAO support.

Why Telco United for Tier 1 Subcontractors CMMC

Tier 1 Experience

We have supported Tier 1 subs across multiple primes.

Fixed-Price Engagements

Scoped, capped.

Flow-Down Governance

Supplier scorecarding and DFARS 7021 support.

24/7 Managed SOC

US-person SOC.

Program Management Alignment

Our CMMC work fits into your program management structure.

End-to-End Delivery

Implement, document, train, audit.

Tier 1 Subcontractors CMMC FAQ

When do Tier 1 subs need CMMC?
Primes are flowing Level 2 down on new contracts now.
What level do we need?
Level 2 in nearly all cases.
How do we manage downstream flow-down?
We deploy supplier scorecarding and SPRS tracking to manage DFARS 7021 obligations.
How long does readiness take?
Eight to twelve months for most Tier 1 subs.
Cost?
$150,000-$400,000 for Tier 1 readiness plus managed compliance.
Do we need separate enclaves per program?
Not necessarily; one enclave with program-level access controls is usually sufficient.

Start Your Tier 1 Subcontractors CMMC Journey Today

Get a free consultation with our CMMC experts. No commitment, just clear next steps tailored to your contracts, your environment, and your timeline.

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