To reduce costs, FIA limited number of testing kilometers to 15 000 in 2009., but promotional and demonstration events (two of each per year) do not count towards this tally.
Each team may carry out two promotional events (maximum of 100 km each) and two demonstration events (maximum of 15 km each using demonstration tyres).
Testing can take place with only one car per team and cannot take place outside of Europe without the agreement of a majority of the all teams.
All cars must have standard ECU approved by FIA and have successfully passed all crash tests and carry all safety equipment.
Teams are permitted to take part in two team tests between February 1 and first race of the season of no more than four days each. One day must be set aside fot testing of wet weather tyres.
From ten days before the start of the season to the end of the calendar year, teams can take part in two team tests of no more than two consecutive days at circuits where a GP weekend has just taken place, no less than 36 hours after the end of the event. Teams must use their young drivers during at least two days of in-season testing.
All competitors must shut their factories down during a period of 14 days in July and/or August and cannot use their wind tunnels and Computational Fluid Dynamics facilities (CFD) during that period.
Since 2014. wind tunnel testing is heavily restricted to reduce costs. Teams can use scale models no larger than 60% and speeds are limites to 50 m/s (180 km/h).
FIA F1 2017. sporting regulations can be downloaded here.