• Overview

• Device Certification

• Certified Product Catalog

• Certification Tool

• Details

• User Guide

• License Agreement

• Professional Certification

• Annual LonMark Awards

  Related Information

Device Certification - LonMark conformance instructions.

Design Guidelines - Technical information for developing open interoperable LonMark products.

Technical Corner - Provides answers to commonly asked technical questions.

LonMark Members who manufacture products used in Open Systems

LonMark Certification Tool Details

  1. Companies developing interoperable products are encouraged to follow the LonMark Interoperability Guidelines. Application-specific Functional Profiles can be downloaded from the Guides & Specifications section to help you through the development process.
    • If you have questions about the Guidelines and certification process, please send an email to cert@lonmark.org.
    • If you have questions about specific Functional Profiles, please login to the Member Area and direct your questions to the appropriate Task Group Leader.
  1. You must be a LonMark International Partner or Sponsor Member in good standing in order to access the Web-based LonMark Certification Tool (LCT).  If you are not yet a LonMark member, membership information and an application form can be found in the Membership section of this website.
  1. You must have access to the Member Area of the LonMark website.  If you are a LonMark member in good standing and do not have a valid ID and password, you may request Member Access here.
  1. In order to access the LCT and create a Certification Project, testing fees must be pre-paid.
    The Testing Fees are as follows:

  2. Product Fees
    Annual Tool License
    US$ 2000
    New Certification
    US$  200
    Upgrades (devices replacing older devices)
    US$  100
    Administrative Changes
    US$  100

We currently accept the following forms of payment:

  1. Purchase Orders
  2. Bank Checks
  3. Wire Transfers
  4. Credit Cards
Payment information may be submitted by the following methods.
Internet payment is not yet available:
  1. Telephone: +1 408-938-5266, x 1
  2. Fax: +1 408-790-3838
  3. Email: admin@lonmark.org

By downloading the certification tool, you agree to the LonMark Certification Tool License Agreement. Read this agreement and after logging in to the member area, you will confirm your acceptance of the agreement. You can download a PDF of the agreement here.

  1. Click here to go to the LonMark Certification Tool Login page in the Member Area.

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The number of applications for LonMark certification is growing rapidly. To make sure your products are on-track for certification, design conformance into them by following the LonMark Interoperability Guidelines v3.4.

see Device Certification

The Proficiency Testing Program for Qualified Open Systems Installers, Professionals and Integrators provides a worldwide standard of proficiency for individuals that install, integrate and maintain systems utilizing LonMark certified products.

see Professional Certification