Nikon D-SLR and Coolpix cameras do not require a warranty registration. However, customers who buy the 2-year extended warranty can register it. Nikkor lenses that come with a standard one-year USA limited warranty plus a 4-year USA Extended Service Coverage require warranty registration, which customers can complete it at Nikonusa.com.
In case a Nikon D-SLR or Coolpix camera needs a warranty service, it is advisable to provide a valid and original proof of purchase from an authorized dealer. However, customers need to register their products via their online Nikon USA account for future service issues. Customers also need to keep the sales receipt for Nikkor lenses alongside the warranties.