Approximately 350 businesses voluntarily participate in the program. Employers encourage their employees to limit driving on the next day, through carpooling, telecomuting, using public transportation, or by working a flexible schedule. Some companies offer free bus passes, while others offer matching funding, creating a financial incentive to use public transit. In addition, the Oklahoma Department of Transportation installs a variable message board on major commuter expressways on the day before an alert, to remind drivers to consider other commuting options. When funding is available, bus rides on ozone alert days are free.
Program also contribute in other ways.
For example, aerospace manufacturers voluntarily cease painting operations, while local governments and some private companies curtail lawn mowing and landscaping activities. In addition, there is substantial media coverage of ozone alert days. Local meteorologists feature the announcement on the evening weather reports, and local television stations play public service announcements to publicize the program and the need for reductions. Reaching out to establish good relations with the media is key to a successful voluntary action effort. Tulsa's efforts were successful in that no further violations of the standard occurred, and the area was able to retain its attainment status.