The following federal income tax credits are available to anyone who purchases a new Tesla Model S, Model X or Model 3:
Several states and local utilities offer additional electric vehicle incentives for customers, often taking the form of a rebate. Rebates can be claimed immediately after purchase, while tax credits are claimed when filing income taxes.
Many states also offer non-cash incentives, such as carpool lane access in California and free municipal parking.
So it looks like they hit the 200k mark in July which could explain some of the higher Q2 in transit numbers and should lessen some of the cancellation concerns.