AR SB405

Extends the deadline for high-volume third-party sellers to provide required information to online marketplaces from 24 hours to 10 days after qualifying as a high-volume seller

Changes verification timeframes from 3 days to 10 days for online marketplaces to verify seller information and any subsequent changes

Expands acceptable verification methods from specific requirements (two-factor authentication, public records search, government ID) to "one or more reliable methods" that confirm documents are valid, correspond to the seller, and are not falsified

Removes requirement for sellers to disclose whether they exclusively sell on one marketplace or also sell on other websites

Adds $20,000 annual gross revenue threshold for requiring high-volume sellers to disclose identity information to consumers, and allows disclosure through order confirmation messages or account transaction history rather than only on product listings