Washington — As legal battles over the U.S. Postal Service's new regulations for mail ballots move forward, state and local election officials are raising concerns about the logistical hurdles they will have to surmount to implement the requirements just weeks before the November elections.Mail ballots will go out to voters in several states in mid-September — and by Friday in one — leaving election officials with little time to make the changes that the Postal Service is calling for, if the rule is allowed to take effect. In Wisconsin, clerks in two municipalities have already sent out ballots, since state law allows them to do so as soon as the results of the primaries are certified.The Trump administration has said the rule imposes "modest informational requirements" on states and localities, and "should not prevent a single voter from voting by mail."But numerous top election officials are warning that it would be difficult, if not impossible, to satisfy the new requirements, saying they would impose significant financial costs and strain resources. "The bottom line is that it is effectively impossible for these requirements to be implemented in advance of 2026 without causing mass disenfranchisement and ballot delays," Anna Baldwin, director of voting rights litigation at the Campaign Legal Center, told CBS News. "There are 10,000 local jurisdictions in the country that administer elections. When we think about this as a rule imposing requirements on the states, that's true. But more importantly, it's a rule that imposes requirements on every jurisdiction that actually does the mechanics of absentee balloting."The states' concerns over the new processes have been detailed in remarkable court filings in the ongoing legal battle. One official in New York said that adding voters to a new portal would require more than 10 years' worth of cumulative work by state and local employees. Another from California said that based on Postal Service estimates, scanning individual ballots for every voter in the state would take roughly 43 years, underscoring the huge logistical hurdles that states are facing.What the new rule doesThe new rule was published by the Postal Service on Aug. 21. A federal judge overseeing a lawsuit brought by 24 states led by Democrats and the District of Columbia has temporarily barred the agency from implementing key aspects of the measure for the Nov. 3 elections. The judge, Indira Talwani, is considering whether to grant the states longer-term relief.