When Jake landed a new construction job, he disclosed being bipolar to his manager and requested a 24-hour notice if he was needed at a site earlier than usual. This would allow him to adjust his medication beforehand in order to drive safely. 
Although the company agreed to this accommodation, he was cited for being late more than once. Jake called his regional ADA center and was advised that a good first step would be to contact human resources to see if they could work things out. 
In the end the company not only reaffirmed his accommodation but made sure to provide a hotel when sites were more than two hours from his home, which has helped him to show up on time as well as has required less driving. The advice left Jake empowered with the knowledge he needed to tackle the barriers he was facing thanks to the ADA.