Nissan Altima (L33) 2013-2018 Owners Manual ≻ Technical and consumer information ≻ Vehicle identification ≻ Emission control information label
Nissan Altima (L33) 2013-2018 Owners Manual: Emission control information label

The emission control information label is attached to the underside of the hood as shown.

F.M.V.S.S./C.M.V.S.S. certification label
Tire and loading information label