The US Federal Communications Commission has approved the sale of online retailer Amazon's new Kindle Fire 4G tablets in the country.
An approval from FCC is required for all mobile phones and tablets that use cellular networks in the US, to assure that they do not meddle with other devices.
Unveiled in September at an event in Santa Monica, California, US as an opponent to Apple's iPad, the new 8.9-inch Kindle Fire HD features a 1920-by-1200 resolution screen and operates on either Wi-Fi or 4G.
The new tablet also features a front-facing camera, combined with a pre-installed application from Skype that allows users to video chat.
The High-end 64GB model of the new Kindle Fire line up is priced at $599, while the cheapest 7-inch WiFi-only Kindle Fire version will be available at a price of $159.
Online retailer's growing tablet line-up is anticipated to reinforce a battle with competitors including Google and Microsoft.
The new tablet is available to pre-order with scheduled commencement of sales in the US on 20 November 2012.