I found more info:
CS-VLA 1 Applicability
This airworthiness code is applicable to
aeroplanes with a single engine (spark- or
compression-ignition) having not more than two
seats, with a Maximum Certificated Take-off
Weight of not more than 750 kg and a stalling
speed in the landing configuration of not more
than 83 km/h (45 knots)(CAS), to be approved
for day-VFR only. (See AMC VLA 1).
And there should be some amendment somewhere which allows NVFR...
Here is the EASA document describing the specifications for CS-VLA:
http://www.easa.europa.eu/agency-mea...20combined.pdf