Section 9

Methods for measuring noise levels

General
- The measurement microphone must be positioned as follows:
  - Height 1 meter, approximately 200 mm above the water level.
  - Position at a right angle to the center-line of the course.
  - The measurement microphone must be located at right angles with the connecting line of the two lowest buoys and securely positioned.
- It is a requirement that boats must pass the noise measuring equipment at full speed.
- The noise measurement must be taken when the boat is on the base line and at least 15 meters away from the microphone.
- Noise limit will be enforced at 95 dB and any boat over the limit would be warned and must have it repaired by the following race day. If not within the limit at following race day, the boat cannot compete until the silencing problem is rectified.

Re-testing boats that were measured as being above maximum noise levels
- Any boat that was tested and measured to be above the maximum noise level must be re-tested with no other boats running that could influence or interfere with the reading.