In medium bowl, combine flour, salt, baking soda, and baking powder. Stir with fork so all ingredients are mixed.
In large bowl, combine sugars, and butter. Mix until smooth. Add eggs and vanilla and beat until smooth and fluffy.
Add 1 cup of dry ingredients at a time to mixture until all is incorporated. Stir in chocolate chips. Drop cookies onto ungreased cookie sheet and bake for about 10-15 minutes or until edges are golden brown.
