THE LTA says vehicles that are heavily tinted will be impounded and the tint windows removed.
LTA chief executive Naisa Tuinaceva said a stern warning had been issued to PSV drivers and owners as well as private vehicle owners that the authority would come down hard on those who breached the regulated tinting policy stipulated under the Land Transport Act of 1998.
"Extreme heavy tints on vehicles will be removed as it poses a lot of suspicious and threatening dilemma amongst the general public," Mr Naceva said.
"The LTA perspective is behind the obscurity of car windows and 'suspected' activities inside. Someone's life could be compromised inside those heavily tinted vehicles.
"It could be inside a private vehicle, taxi or minibus or there could be crime-related offences that could go unnoticed.
"For PSV vehicles, we do not want to compromise the lives of the general public, there could be a lot of suspected activities that could be happening inside heavy tinted vehicles that might be a direct threat and might endanger the safety and security of passengers."
He suspected illegal activities such as consumption of alcohol, carrying of illicit drugs, kidnapping and many other crimes committed while in obscurity could be hidden by tinted vehicles.
"We do not want this to be happening in PSV vehicles or any vehicle.
"LTA is also concerned with the high number of privately-owned vehicles that are breaching this part of the LTA policy."
Mr Tuinaceva said a number of traffic infringement offences were unnoticed because of extreme tints.
"These are offences such as drivers or passenger not wearing seat belts, drivers talking on mobile phones or texting while behind the wheels.
"They are road safety-related issues — LTA has placed a zero tolerance on road infringement offences."