COMPETITION RULES IBU EVENT AND COMPETITION RULES ...

3.2.4.1 Start Position Boards - Relay, Group and Mass
Start competition
The start positions must be marked with numbers.
There must be the same number of boards as the number of starters
in the competition. The size of the board must be 20 x 20 cm.
The number boards are to be placed on the left
of each position and the number must be readable
from the front and the rear.
The numbers on the boards must be at least 10 cm high and must
be highly visible to the competitors and TV.
3.2.5 Course Information Boards
There must be a board at the entrance to the start area on which
the course map shows
the color sequence for the competition.
3.2.6 Start Clocks
At the start area for Individual and Sprint competitions, there must be
a start clock placed so that it is easily readable from the start line.
The display of the clock and the sound signal must be synchronized.
For the Pursuit competitions, there must be a start clock for each
start lane. As well, in or near the start area there must be a clock
displaying the correct time of day, which must be easily visible to
competitors in the area.
3.2.7 Equipment/Material Inspection Prior to Start
The equipment/material inspection prior to the start must be
located in close proximity to the
start area. Its placement and design must facilitate the smooth, orderly
and timely flow of competitors through to the start. The inspection
station must have tables and the required equipment and materials to
perform the checks.
3.3 COURSE AND ASSOCIATED SECTIONS
3.3.1 General
The course is the network of ski trails to be used for the competition.
It shall consist of continuously changing flats, climbs and downhill
sections. Extremely long and difficult climbs, dangerous descents
and monotonous flats are not
permitted. Changes in direction of the course must not occur so
frequently that a competitor's ski rhythm is seriously disturbed.
Detailed course specifications are given under 1.3.8 in Table 1.
3.3.1.1. TV Zones
Zones for TV coverage of the competitions will be established on the
course by the RD/Asst. RD
responsible for the event. The
primary purpose of the zones shall be to ensure the best possible coverage
of the competition and in particular to prevent obstruction of the TV
image by non-competing persons.
3.3.2 Altitude, Width, Gradient and Length
The maximum altitude of any part of the course may not be higher
than 1800 m above sea level, unless an exception is specifically
authorized by the IBU EB in necessary circumstances. For all IBU
events, the course must have a minimum width of 6 m of groomed
snow surface. In places like difficult climbs, the uphill gradient of
the course may not exceed 30% and if required the trail must be
even wider. If narrower sections such as bridges or mountain passes
are unavoidable, the narrow parts may not be less than 4 m wide or
longer than 50 m.
The actual length of the course may not differ by more than 5 %
from the length specified for the competition.
3.3.3 Setting of Tracks