Preheat oven to 350°F (175°C) and grease a 9×5 inch loaf pan.
In a bowl whisk together flour, baking soda, baking powder, cinnamon, nutmeg, and salt.
In another bowl mix sugar, oil, eggs, and vanilla until smooth.
Stir grated zucchini into the wet mixture.
Gradually add dry ingredients and mix until just combined.
Pour batter into the prepared loaf pan and spread evenly.
Bake for 45–50 minutes until a toothpick inserted in the center comes out clean.
Let the bread cool in the pan for 10 minutes before transferring to a rack.