Dear Transit System CEOs,   The New Rush Hour: As work-from-home continues to be an option for many in the Boston region, MBTA data shows that rush hour no longer exists as commuters once knew it, with peaks more smoothed out over the work day. Read more   Airflow and Ventilation: SEPTA, along with other transit agencies, has airflow and ventilation rates which far outpace standards set for restaurants and other public places. Read more   Transit is Not High-Risk: As more people resume their daily commutes or venture outside their neighborhoods, precautions such as wearing a mask at all times, choosing the least crowded transit option, making trips as short as possible, and prioritizing well-ventilated subway cars or buses are the best strategies for reducing the risk of COVID-19 infection on public transportation, according to epidemiologists. Read more   REMINDER: Today is the last day to register for APTA's Mobility & Rail NOW! virtual event, scheduled for August 12-13.  Register here.     For more information on public transit's response to the pandemic, visit APTA's COVID-19 Resource Page. Have questions related to COVID-19? APTA has established an email hotline to assist you. Send your questions to coronavirusquestions@apta.com.