Hearing loss from occupational noise exposure is a significant occupational health problem, requiring effective health and safety strategies. Essential to this is an understanding of the noise exposure of workers and the use of hearing protection equipment (HPE). This study reports on data collected in New Zealand. Visits were made to companies in each economic sector. Personal dosimetry was used to assess individual noise exposure of 529 workers. Workers were also interviewed about their use of HPE. Overall, 40.4% of production workers had a daily noise exposure greater than 1 Pa(2)h, exceeding the New Zealand National Standard for occupational noise exposure without HPE. Of these, 88.5% reported to use HPE when working in noise; however, some observations suggested that workers do not consistently use the devices. These data add to the overall picture of noise exposure of workers in New Zealand and are especially useful in areas where data did not previously exist or were difficult to access.