Standard Delivery: once activated, this'll be displayed & available US-wide to all your customers for $10, unless the cart is over $150, in which case the price will only be $5. It'll calculate the arrival date as 5-8 business days (but show it as calendar dates) and only be displayed for orders up to 70 lbs.

Express delivery: once activated, this'll be displayed & available to your customers nearby, in what USPS calls zones 1 and 2. Orders that come in from this delivery method will pay full express pricing, but will be close enough to be shipped with cheaper delivery options and still arrive on time as an expedited service level (because it's a closer shipping destination). If an order's shipping destination is further away (in the other USPS zones), it'll be shown in the other Express delivery option.

Express delivery: once activated, this'll be displayed and available to customers outside of zones 1 & 2 (just zones 3-8), so that you know to ship them with express delivery for them to arrive on time.