01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan or line with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, and nutmeg.
03 - In a large bowl, whisk eggs, vegetable oil, granulated sugar, brown sugar, and vanilla extract until smooth.
04 - Stir grated zucchini into the wet mixture until evenly combined.
05 - Add dry ingredients to the wet mixture; fold gently until just combined to avoid overmixing.
06 - Fold in chocolate chips evenly throughout the batter.
07 - Pour batter into prepared loaf pan and smooth the surface evenly.
08 - Bake for 50 to 60 minutes until a toothpick inserted in the center comes out clean or with a few moist crumbs, avoiding contact with chocolate.
09 - Allow to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.