xmlns:atom="http://www.w3.org/2005/Atom"
the ceiling is less than 450 m (1 500 ft); or
the ground visibility is less than 5 km.
if leaving the vicinity of an aerodrome, a flight plan shall be submitted in accordance with SERA.4001(b)(6);
flights shall establish and maintain two-way radio communication on the appropriate ATS communication channel, when available;
the VMC visibility and distance from cloud minima as specified in Table S5-1 shall apply except that:
the ceiling shall not be less than 450 m (1 500 ft);
except as specified in (c)(4), the reduced flight visibility provisions specified in Table S5-1(a) and (b) shall not apply;
in airspace classes B, C, D, E, F and G, at and below 900 m (3 000 ft) above MSL or 300 m (1 000 ft) above terrain, whichever is the higher, the pilot shall maintain continuous sight of the surface;
for helicopters in airspace classes F and G at and below 900 m (3 000 ft) above MSL or 300 m (1 000 ft) above terrain, whichever is the higher, flight visibility shall not be less than 3 km, provided that the pilot maintains continuous sight of the surface and if manoeuvred at a speed that will give adequate opportunity to observe other traffic or obstacles in time to avoid collision; and
for mountainous terrain, higher VMC visibility and distance from cloud minima may be prescribed by the competent authority;
ceiling, visibility and distance from cloud minima lower than those specified in (3) may be permitted for helicopters in special cases, such as medical flights, search and rescue operations and fire-fighting;
except when necessary for take-off or landing, or except when specifically authorised by the competent authority, a VFR flight at night shall be flown at a level which is not below the minimum flight altitude established by the State whose territory is overflown, or, where no such minimum flight altitude has been established:
over high terrain or in mountainous areas, at a level which is at least 600 m (2 000 ft) above the highest obstacle located within 8 km of the estimated position of the aircraft;
elsewhere than as specified in i), at a level which is at least 300 m (1 000 ft) above the highest obstacle located within 8 km of the estimated position of the aircraft.
above FL 195;
at transonic and supersonic speeds.
over the congested areas of cities, towns or settlements or over an open-air assembly of persons at a height less than 300 m (1 000 ft) above the highest obstacle within a radius of 600 m from the aircraft;
elsewhere than as specified in (1), at a height less than 150 m (500 ft) above the ground or water, or 150 m (500 ft) above the highest obstacle within a radius of 150 m (500 ft) from the aircraft.
when operated within Classes B, C and D airspace;
when forming part of aerodrome traffic at controlled aerodromes; or
when operated as special VFR flights.
if a flight plan was submitted, communicate the necessary changes to be effected to its current flight plan; or
as required by SERA.4001(b), submit a flight plan to the appropriate air traffic services unit as soon as practicable and obtain a clearance prior to proceeding IFR when in controlled airspace.