The title held by a social worker can vary in different countries and even among states in the US, but two of the most common types are direct-service social workers and licensed clinical social workers (LCSWs). Direct-service social workers help people deal with the challenges in their day-to-day lives.
American car manufacturers Nash (in 1949) and Ford (in 1955) offered seat belts as options, while Swedish Saab first introduced seat belts as standard in 1958. After the Saab GT 750 was introduced at the New York Motor Show in 1958 with safety belts fitted as standard, the practice became commonplace. Glenn Sheren of Mason, Michigan submitted a patent application on March 31, 1955 for an automotive seat belt and was awarded US Patent 2,855,215 in 1958.
In the 1970s, when federal safety standards were first set for car seats, the only requirements were that car seats had to be seatbelted in the car and the child harnessed in the seat; no crash testing was included in certification.