Specifications include, but are not limited to: 1. Weight: ROV must not exceed 65 lbs so that it can be deployed and recovered manually (i.e., without the need for davits or other lifting equipment) 2. Size: The overall dimensions must not exceed 36 inches x 24 inches x 24 inches so that the ROV can be operated on small watercraft with limited deck space 3. Materials: ROV frame and components must be constructed of aluminum, stainless steel, titanium, plastic, or other materials resistant to corrosion from sea water 4. Design: ROV must be designed in a way that allows replacement of components and parts with basic hand tools and limited technical expertise 5. Electrical System and Electrical Power: ROV must be battery powered (i.e., operation does not require the use of 120/240V gas-powered generator) and must include the ability to change batteries onboard the board to continue ROV operations. In addition, ROV must come with at least one spare battery, and batteries must be rechargeable with a recharge time less than 4 hours. 6. Power and Maneuverability: ROV must have a minimum of four vectored thrusters to increase stability and ease of use and must be able to operate in currents up to 3 knots, and it must have at least two vertical thrusters. Additionally, the ROV must be equipped with automated station holding capabilities. 7. Camera(s): ROV must include a forward-looking, rotatable (a minimum of 2400 of rotation) camera capable of capturing video of at least 3840x2160 (UHD 4K) resolution. 8. Lights: ROV must have forward-facing lights of at least 8,000 lumens. 9. Tether: ROV must be equipped with a neutrally buoyant tether of at least 500 feet in length 10. Control: ROV must include a control system and hand controller that allows full operation and maneuverability. The controller must also be capable of recording the video and data output (e.g., sonar, GPS location, etc.) from the ROV 11. Connectivity: The control system or hand controller must have, at a minimum, USB, HDMI, and Ethernet outputs through which storage and other peripherals can be connected. In addition, onboard controller storage must be expandable via SD card. 12. Sonar: ROV must include multibeam imaging sonar to improve operability in poor visibility environments, and the imaging sonar operation and read out must be integrated into the ROV controller 13. Underwater Tracking: ROV must include a method of positioning the ROV while operating, and the readout from the positioning system must be integrated into the control unit 14. Ancillary sensors/tools: ROV must include sensors for heading and depth that readout to the controller, as well as a laser scaler for sizing objects underwater.