Registered Communications Distribution Designers (RCDDs) develop plans for the installation of telecommunications cabling distribution systems in buildings. They may be new buildings, or the cabling may be added to enhance a current infrastructure. As an RCDD, you determine the telecommunications needs of the company, examine the structure, design the plans to outline where the cables should be installed, and oversee the installation of the system. You may also be responsible for ensuring the project complies with industry standards, maintaining the cabling system, and evaluating how long it should last. The title of RCDD signifies certification in the field by the Building Industry Consulting Service International (BICSI).