This is a legacy version of the WELL Building Standard. Please check the latest version here.

Certification Process


To get started with the WELL Building Standard™ (WELL) Certification, download the WELL Certification Guidebook and Performance Verification Guidebook. These resources are designed to guide you through every step of the certification and performance verification process so you’ll know what to expect when you begin your journey.

WELL Certification Guidebook

Please download the WELL Certification Guidebook for an overview of the WELL Certification process. Learn the steps and access the resources you’ll need to register your project, complete performance verification and drive awareness of your WELL Certified project. The Certification Guidebook includes detailed information on the following topics:

  • Registration
  • Documentation Requirements
  • Performance Verification
  • WELL Report
  • Award & Continued Engagement
  • Innovations & Alternative Adherence Paths
  • Curative Actions And Appeals
  • Precertification
  • Recertification
  • Use Of Project Information

Performance Verification Guidebook

Please download the Performance Verification Guidebook to explore a step-by-step guide to completing the on-site testing and assessments required for WELL Certification. The guidebook includes detailed information on the following topics:

  • General Information and Set Up
  • Performance Testing Protocols
  • Visual Verification and Spot Checks

Letters of Assurance

WELL Certification is determined by onsite performance verification and documentation, including Letters of Assurance from the appropriate professionals overseeing the implementation of specific WELL features and component parts during design, construction or operations.

The following Letter of Assurance templates should be completed, signed and submitted as part of the documentation package: