INDIANAPOLIS – USAC has announced multiple rule changes and enforcements to be utilized this season, with several pertaining to all three USAC national divisions.

– In USAC Silver Crown Series, AMSOIL National Sprint Car Series and NOS Energy Drink National Midget Series competition, lapped cars will be sent to the tail of the field for all restarts during the feature event.

– All radius rods must be one piece on cars for Silver Crown, National Sprint and National Midget competition in 2020. No spring rods or shock dampers will be allowed.

– The weight rule for Silver Crown has been increased to a 1,675-pound minimum, with driver. Rules regarding added weight for aluminum blocks will remain the same.

– Specific to the AMSOIL National Sprint Car Series, split qualifying will be retained for 2020.  For events where more than 36 cars are in attendance, qualifying will be split into two flights. Cars will only qualify against other cars in their flight and fill heats one and two or heats three and four.

For lineup purposes, the fastest qualifier in the slower flight will be considered the No. 2 seed. That will continue through the field and be used to grid feature lineups. Qualifying points will be awarded to the overall fastest six.

– For the feature lineup, positions seven through 10 will be filled by the heat race winners in order of heat races. If a car in the top-six feature invert wins a heat race, the available spots seventh through 10th are filled by qualification order of cars qualified for the feature.

– If there are 30 cars or less, three heat race events will be conducted. If there are 31 or more cars in attendance, four heat races will be conducted.

– The weight rule for sprints has been increased to a 1,375-pound minimum, with driver.

– Specific to the NOS Energy Drink National Midget division, no split qualifying will be held.

For the feature lineup, positions seventh through 10th will be filled by the heat race winners in order of heat races.

If a car in the top-six feature invert wins a heat race, the available spots seventh through 10th are filled by qualification order of cars qualified for the feature event.

– If there are 30 cars or less, three heat race events will be conducted. If there are 31 or more cars in attendance, four heat races will be conducted.