A Rules for Foot Orienteering Events - Orienteering USA

C.23.5 There shall not be other confusing figures or marks on the control flag.
C.23.6 It is recommended that numbers or letters that can improperly be read upside
down not be used (i.e. 86 - 98). If, however, they are used they shall have a line
drawn beneath them to indicate the proper stance.
C.23.7 Every control shall have control card marking device/s. If only manual punching
is used, then only a manual punching device is required. If electronic punching is
used, then both a manual and electronic punching device shall be provided.
C.23.8 To minimize competitors waiting for a marker there shall be an ample number of
marking devices at each control location. This is particularly important at the
early controls when a mass start is used.
C.23.9 REFRESHMENTS: Blue and Red courses should have an official aid station with
liquids about halfway through the course. Cold liquids should always be included
at this station. To ensure competitors' safety, hot liquids should also be provided if
the weather is severe and it is anticipated that most competitors will take 90
minutes or longer to complete the course. Arrangements for an aid station should
be described in Event Information.
C.24 Control Descriptions
C.24.1 Control Descriptions are not used in Ski Orienteering.
C.25 Out-of-Bounds areas and one-way travel
C.25.1 Out of bounds or dangerous areas, forbidden routes, line features that shall not be
crossed, etc shall be marked on the map. If necessary, they shall also be marked
on the ground. Competitors shall not enter, follow or cross such areas, routes or
features.
C.25.2 Compulsory routes, crossing points and passages shall be marked clearly on the
map and on the ground. Competitors shall follow the entire length of any marked
section of their course.
C.25.3 The prohibition against entering sown land, or land with crops, does not apply to
Ski Orienteering.
C.25.4 When possible, Ski Orienteering competitions should be held at sites where
competitors can travel on tracks or trails in either direction. Sometimes, however,
one-way travel is mandated on some or all tracks by local authorities. This
restriction should be indicated on the map (Section C.17.5) and in Event
Information. Competitors are not permitted to ski the wrong way on a track
indicated as one-way by the organizers.
C.26 Start
C.26.1 The start order shall be determined by the Meet Director or his/her designate with
the principle of fairness kept in mind.