. . . . . . . "Air Quality (Taxis and Private Hire Vehicles Database) (England and Wales) Regulations 2019" . . "Air Quality (Taxis and Private Hire Vehicles Database) (England and Wales) Regulations 2019" . . . . . "Air Quality (Taxis and Private Hire Vehicles Database) (England and Wales) Regulations 2019" . "Air Quality (Taxis and Private Hire Vehicles Database) (England and Wales) Regulations 2019" . "Air Quality (Taxis and Private Hire Vehicles Database) (England and Wales) Regulations 2019" . "SI" . "2019"^^ . . . . . . . . . .