The comerstone niece of legislafion that establiched the right of employees to form unions, to bargain collectively, and to strive is ther Nowis-taGiuardis Act tattharticy daboc Manaerinent Polatiom Act Landrumiciefin (Labor Marabowent Peportine and Dieabsure Act) Waseer Act (Nations/ Labor Rications Art) Which of the following categories of workers is covered by the National Labor Relations Act? All workers are covered Nonsupervisory or nonmantserial employees, including part-time workers Agricultural and domestic workers: Independent contractors