MADRID - International Olympic Committee doping rules will prevail over Spanish laws if Madrid is chosen to hold the 2016 Olympic Games, Spain's Olympic Committee president Alejandro Blanco said Tuesday.

He was reacting to the IOC evaluation commission report of Madrid's bid to host the Games published last week, which said Spain's anti-doping legislation was possibly not up to its standards.

Spain's legislation forbids doping tests being undertaken at night while the World Anti-Doping Agency (WADA) expects athletes to be available round the clock for doping tests.

Blanco said the Spanish government was mulling making changes so that its doping legislation, which was stiffened two years ago, meets global standards.

"We continue to defend the work that was done in Spain, which has a specific law against doping. Spain has taken an important step in the fight against doping which it considers to be a crime, not on the part of athletes but by those who make money off the health of these athletes," he added.

A law which came into force in 2007 calls for prison sentences of six months to two years for anyone convicted of prescribing, dispensing or facilitating the use of banned substances among athletes.

Athletes convicted of doping could be banned for three months to four years and face hefty fines.

The IOC's doping rules, based on WADA regulations but which are even more restrictive, automatically apply to nations that organise the Olympics while the event is underway.

The Spanish capital is competing with Rio de Janeiro, Tokyo and Chicago for the right to host the Games.

The IOC is to announce the winning city on October 2 in Copenhagen.

Madrid mayor Alberto Ruiz Gallardon unveiled Tuesday the bid committee's "official" airplane, an Airbus A-321 from Spanish flag carrier Iberia that display's the colourful Madrid 2016 bid logo, which will fly the city's delegation to Denmark for the announcement of the decision.

"To baptize a plane is to give wings to a dream. The Airbus 321 will take off on 30 September, and will return, I hope, on Saturday October 3 with the assignment of Madrid as the venue for the 2016 Olympic and Paralympic Games," he said.

The Spanish capital also ran for the 2012 Games but came third behind Paris and eventual winners London.