What Is the American Countertop Manufacturers Council (ACMC)

For purposes of the American Countertop Manufacturers Council (ACMC), a countertop manufacturer is any business that fabricates, finishes, processes, or assembles countertop surfaces for residential, commercial, industrial, or specialty applications.

This includes companies working with any countertop material, including but not limited to:

  • Natural stone (granite, marble, quartzite, soapstone, slate, limestone, travertine)
  • Engineered and composite materials (engineered stone/quartz, terrazzo, solid surface, recycled glass composites)
  • Porcelain and sintered slabs
  • Wood products (butcher block, bamboo, reclaimed wood)
  • Metal surfaces (stainless steel, copper, zinc)
  • Concrete and cementitious materials
  • Laminate and paper composites
  • Recycled and sustainable materials
  • Emerging or innovative countertop materials

A countertop manufacturer may operate a fabrication shop, finishing facility, or processing operation and may work independently or in coordination with installers, designers, builders, or suppliers. The definition is material-neutral and reflects the full diversity of fabrication practices across the United States.

This inclusive definition ensures that all businesses responsible for the manufacturing and fabrication of countertop surfaces have a clear, documented pathway to participate in the ACMC Issue Register and consensus process.

The ACMC Issue Register is a centralized, secure system where issues impacting countertop manufacturers are formally submitted, recorded, and tracked.


Any countertop manufacturer—whether they are a member of the ACMC—may submit an issue for consideration. Each submission is logged into a public-facing register that serves as the industry’s single source of truth for: 

  • Issues raised by manufacturers
  • Supporting data and documentation
  • Industry comments and feedback
  • Council deliberations and votes
  • Final consensus outcomes

The Issue Register ensures transparency, accountability, and permanent documentation of how industry positions are developed.

CLICK HERE TO REPORT YOUR ISSUE

Once an issue is submitted through the ACMC Issue Register, it follows a defined, consensus-based process:

  1. Issue Review & Documentation
    The issue is reviewed for scope, clarity, and compliance with ACMC policies and procedures. Supporting information is documented using a standardized format focused on facts and verifiable observations.
  2. Open Industry Comment Period
    The issue is made available for public industry comment. All countertop manufacturers may submit input, regardless of ACMC membership status.
  3. Council Deliberation
    ACMC members review the issue, industry feedback, and supporting documentation during a scheduled meetings conducted under strict antitrust and legal safeguards.
  4. Consensus Vote
    Council members vote on the issue. Adoption of a formal ACMC position requires a two-thirds (2/3) supermajority. Any negative votes must include written rationale and are formally addressed in the final record.
  5. Publication of Outcome
    The final consensus position—along with documentation of the process, comments, and vote—is archived and published as part of the ACMC’s permanent record and included in official ACMC reports.
  6. Ongoing Reference & Appeals
    All decisions remain archived for future reference. If due process concerns arise, a formal appeals process is available to ensure fairness and integrity.

The ACMC provides the countertop manufacturing industry with:

  • A single, authoritative voice grounded in documented consensus
  • A defensible process aligned with recognized standards for due process and transparency
  • A clear separation between advocacy, administration, and consensus decision-making
  • A permanent record that supports regulators, partners, and stakeholders with credible industry positions

Through the ACMC and its Issue Register, the industry moves forward together—organized, accountable, and aligned.


Who Can Participate 

  • Countertop Manufacturers 
    ACMC membership is open to countertop manufacturers, regardless of ISFA membership. 
  • ISFA Fabricator Members 
    Participation in ACMC is optional. ISFA fabricator members may choose to join ACMC and engage in its process. 

Membership Options 

  • ISFA Members 
    ISFA fabricator members who elect to participate in ACMC allocate $250 of the $850 annual ISFA membership dues to support ACMC administration. 
  • Non-ISFA Members 
    Countertop fabricators who are not ISFA members may join ACMC directly for an annual participation fee of $250. 

Participation grants the right to engage, comment, and vote within the ACMC consensus process.  

ACMC Issue Registry 

  • The ACMC Issue Registry is the official public record of all ACMC activity, including submitted issues, public comments, deliberations, and adopted industry positions. 
  • The registry supports transparency, accountability, and access to both current and historical ACMC records. 

ACMC Applications and Forms

  • ACMC Application 
    Apply to participate in ACMC and take part in the formal consensus process. 


Frequently Asked Questions

  • Who is eligible to participate in ACMC? 

ACMC participation is limited to fabricators only. The program is designed specifically for fabricators to engage in the formal ACMC consensus process. 

  • Is ACMC participation required for ISFA fabricator members? 

No. Participation in ACMC is optional for ISFA fabricator members. 

  • What does ACMC cost for ISFA fabricator members? 

For ISFA fabricator members who choose to participate in ACMC, $250 of the $850 annual ISFA membership dues is allocated to ACMC to support administrative and consensus activities. 

  • Can non-ISFA fabricators join ACMC, and what is the cost? 

Yes. Countertop fabricators who are not ISFA members may join ACMC directly for $250 per year. 

  • Do I need to complete an ACMC application if I am already an ISFA member? 

Yes. All fabricators who wish to participate in ACMC must complete an ACMC application, including current ISFA members, to confirm participation in the ACMC consensus process. 


All policies and procedures for the American Countertop Manufacturers Council can be accessed using the link below. 

ACMC Policies and Procedures