Seat belt that required a particular technical approach would rapidly become dated as motor manufacturers would tool up for a particular standard which could not easily be changed. For example, in 1969 there were competing designs for lap and three-point seat belts, rapidly tilting seats, and airbags being developed. But as countries started to mandate seat belt restraints the global auto industry invested in the tooling and standardized exclusively on seat belts, and ignored other restraint designs such as air bags for several decades As of 2016, seat belt laws can be divided into two categories: primary and secondary. A primary seat
Youth organizations in Communist Czechoslovakia Internationale des Etudiants en Sciences Economiques" (AIESE) was first headquartered in Prague, but had to leave the country in order to stay politically neutral after the communists gained power. The organisation re-entered Czechoslovakia in 1966 and later became a member of the Socialistic Youth Union as an affiliated body of AIESEC. Youth organizations in Communist Czechoslovakia Youth organizations have always played an important role in political regimes. After the 1948 takeover of power, the Communist Party of Czechoslovakia ("KSČ") formed two Soviet-style youth organizations: the Pionýr (Pioneers, for youngsters eight to fifteen years old) and the Czechoslovak Union of Youth