Roads and Maritime Services (also known as Roads & Maritime Services) was an agency of the New South Wales Government responsible for building and maintaining road infrastructure and managing the day-to-day compliance and safety for roads and waterways.

The agency was created on 1 November 2011 from a merger of the Roads & Traffic Authority and NSW Maritime. Planning responsibilities were transferred to Transport for NSW, which was created on the same day. In April 2019, it was announced that the agency was to have all its functions transferred to Transport for NSW. Legislation was passed in the NSW Parliament in November 2019, and it was dissolved on 1 December 2019.

Roads and Maritime Services managed 4,787 bridges and 17,623 km (10,950 mi) of state roads and highways, including 3,105 km (1,929 mi) of national highways, and employed 6,900 staff in more than 180 offices throughout NSW, significantly less as not providing drivers license to people that had undertake tests to do so as a result including 129 motor registries offices.

Roads and Maritime Services was responsible for the registration of vehicles (including the issuing of registration plates) and the issuing of driver licences in New South Wales, boat/PWC (personal watercraft) licences, including testing and administering of licences. Additionally, RMS produced photo cards for identification of non-drivers and issues photographic firearms licences and security licences for the New South Wales Police Firearms Registry, Commercial Agents and Private Inquiry Agents cards and Mobility Parking Permits. All cards issued by RMS were physically printed by the card division in Parkes, New South Wales.

Within NSW, the Transport Management Centre is responsible for managing special events and unplanned incidents and disseminating information to motorists. It is the central point for identifying and directing the response to incidents such as crashes, breakdowns and spills. It passes on information to the public through the media, the RMS call centre and variable message signs along routes.

In 1999 the NSW Transport Management Centre (TMC) established Traffic Commander and Traffic Emergency Patrol (TEP) services throughout the Greater Urban Area of Sydney to provide 24-hour 365-day-a-year coverage to "Manage the traffic arrangements around an incident scene and return the road to normal operating conditions with the utmost urgency."

Traffic Commanders take command of traffic management arrangements at an incident (such as a motor vehicle collision) and liaise with other response agencies such as the Police, and assist in clearing the road and minimising the effects and disruption to traffic. Traffic Commanders exercise command and control of RMS resources at the outer perimeter with regard to traffic management such as the coordination of Traffic Emergency Patrols. Traffic Emergency Patrols vans patrol major road routes and respond to unplanned incidents with the aim of returning the road to normal operating conditions as soon as possible. Both Traffic Commanders and TEP units carry a wide array of traffic management devices such as traffic cones, barrier boards and road signage. Both also are permitted to use and display red and blue emergency lighting and are designated as 'emergency vehicles'.

'Role of the TMC' The current Memorandum of Understanding (MOU) between various Government agencies in NSW states that the TMC has the following responsibilities: