<P> In New York, headlight flashing is not illegal . New York Vehicle and Traffic Law Section 375 (3) requires that headlamps "shall be operated so that dazzling light does not interfere with the driver of the approaching vehicle". In 1994, New York Supreme Court, Appellate Division held that flipping or flicking high beams at approaching vehicles is insufficient to cause the "dazzling lights" prohibited under New York Vehicle and Traffic Law Section 375 (3). In 2009, the New York Supreme Court Appellate Division (Fourth Department) held that the flashing of lights alone is not a violation of New York Vehicle and Traffic Law Section 375 (3), that stopping a vehicle based upon that is illegal, and all evidence gathered as a result of the illegal stop should be suppressed . </P> <P> In North Dakota, when an oncoming vehicle is within 500 feet, high - beam flashing for any length of time (including momentary flashes) and for any purpose at night is illegal under N.D.C.C. Section 39 - 21 - 21 . </P> <P> In Ohio, courts have held that the act of flashing one's headlights so as to alert oncoming drivers of a radar trap does not constitute the offense of obstructing a police officer in the performance of his duties, where there was no proof that the warned vehicles were speeding prior to the warning . In another case, where a driver received a citation under an ordinance prohibiting flashing lights on a vehicle, a court held that the ordinance referred to the noun of flashing lights and did not prohibit the verb of flashing the headlights on a vehicle . In a different case, a court held that a momentary flick of the high beams is not a violation of Ohio R.C. 4513.15 (which prohibits drivers from aiming glaring rays into the eyes of oncoming drivers). </P> <P> In Oregon, a court ruled that flashing a vehicle's headlights to warn others about the presence of law enforcement is protected free speech under Article I, section 8, of the Constitution of Oregon . </P>

Is it illegal to flash your headlights in texas