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Certification Links

General Certification Info RESO Analytics Reporting Alphabetical List of Certified Organizations Certification Process Nonmember Certification Fees

Membership Links

RESO Member Hub Member Directory Membership Benefits Join a Workgroup RESO Data Dictionary Wiki v.1.7 RESO GitHub RESO Forms and Policies RESO Logos Use RESO Logos to Show Your Commitment to Standards RESO Board of Directors &...

Bylaws, Policies, and Agreement Forms

Bylaws (PDF) Certification Terms and Conditions (PDF) RESO End User License Agreement (PDF) RESO End User License Agreement (EULA) Declaration of Use of RESO Standards Member Intellectual Property Rights Agreement (MIPRA) (PDF) Membership Application Invoice (PDF)...

RESO Common Format FAQ

What is the RESO Common Format (RCF) standard? RESO Common Format (RCF) is an API-agnostic standardized format for data exchange by all parties in the real estate industry, ensuring consistency and interoperability. RCF is a normative JSON data format that corresponds...

Unique Identifiers FAQ

What are RESO unique identifiers? RESO Unique Identifiers ensure accurate identification of people, properties and organizations in real estate data. They include the Universal Property Identifier (UPI), Unique Organization Identifier (UOI) and Unique Licensee...

Certification FAQ

What is RESO certification? RESO certification is the process of testing technology systems to ensure that they conform to the capabilities required in ratified standards. Organizations that pass the testing process and accept the terms and conditions of certification...

Education FAQ

What is the RESO education course known as Working with Real Estate Data (wwRED)? The Working with Real Estate Data course is designed to help both nontechnical and technical professionals understand how data flows through the real estate industry.More Info on RESO...

RESO Analytics FAQ

What is RESO Analytics? RESO Analytics is a platform that provides unmatched insights into real estate data. Through RESO technical certifications, detailed reports and visualizations are created to provide an objective picture of how real estate data is being...

Events FAQ

What is the RESO Web API? The RESO Web API is a standardized data access method for the real estate industry that provides a common language for software systems to exchange data. It was created to replace the older RETS standard and to modernize the way real estate...

News and Media FAQ

Where can I find current RESO news? Recent blog posts, product updates, monthly newsletters, personality interviews and other newsworthy content can be found under the NEWS dropdown menu at the top of the RESO home page at reso.org. Mentions of RESO by other media and...

Organization FAQ

What is RESO? The Real Estate Standards Organization (RESO) is an independent, nonprofit standards body that develops data standards to create efficiencies for all participants in real estate transactions.More Info on About RESO  Who can make use of RESO standards?...

Glossary Terms

What is an API? API stands for Application Programming Interface, the connection point through which data providers and consumers transport data. It is like the set of plugs on the back of a television that enable different kinds of digital media to be transported...

RESO Common Format Links

RESO COMMON FORMAT (RCF) RESO Common Format Home Page RESO Common Format Specification on GitHub RESO Common Format Certification

Web API Links

Web API Transition Leaderboard Certification Map Certification List RESO Analytics RESO Transport Workgroup – Specifications and Change Proposals RESO Transport Workgroup – Discussions RESO Web API Core 2.0.0 Specification Data Dictionary 2.1 In-Process Spreadsheet...

Data Dictionary Links

Data Dictionary Home Page Data Dictionary 2.1 In-Process Spreadsheet RESO Data Dictionary Wiki 2.0 Data Dictionary 2.0 Ratified Spreadsheet Data Dictionary 2.0 Specification Data Dictionary 2.0 Release Guide RESO Data Dictionary Wiki 1.7 Data Dictionary 1.7 Ratified...

RESO Web API FAQ

What is the RESO Web API? The RESO Web API is a standardized data access method for the real estate industry that provides a common language for software systems to exchange data. It was created to replace the older RETS standard and to modernize the way real estate...

RESO Data Dictionary FAQ

What is the RESO Data Dictionary? The RESO Data Dictionary is the real estate industry’s universal language for data. It empowers a wide range of systems to talk to each other in a seamless manner. The Data Dictionary provides a format for industry standard data,...

What is a Multiple Listing Service and How Many MLSs Are There?

This content moved and redirected to a new page. Frequently Asked Questions About MLSs Multiple Listing Services (MLS) in the real estate industry are multi-broker organizations that increase access to housing opportunities and drive exposure for property listings....

Media, Permissions and Private Photos

Solving the issue of photos being deleted while protecting consumer privacy by Rob Larson, RESO Data Dictionary Workgroup Chair. This post is an effort to solicit your input and help us solve another industry pain point at RESO. Real estate listing agents delete...

Master Bedroom and Bathroom Terminology: RESO Discussion

*Read the latest RESO update on the term “master”* From RESO CEO Sam DeBord: Multiple members of the RESO community have asked that we discuss the impact and alternatives for terms that use “master” such as master bedroom or master bathroom. At least one...
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