Question 83 - 85 refer to following paragraph:

Hi everyone, thanks for meeting with me today. (83) I'd like announce a few changes in our health and safety policy that are designed to conform to the new government regulations. Firstly, we can no longer work a shift longer than six hours without taking a one-hour break. We'll be using a clock-in system that is automated to send you a text message once you reach six hours. You will also wear a device that monitors your time on the shift. (84) It's a very simple device, you just attach it to your work belt and it will do the rest, so you won't need any training with that. (85) Sharing helmets and work boots is also now prohibited. You will have to buy your own equipment, and then later you can claim the money back on your tax return.

83. According to the speaker, why are changes being made?