Kantian Ethics

Through the eyes of Kant a decision must only be made according to the moral law.
The consequences of the decision are not taken into account, and happiness in not factored into the equation because Kant believed happiness and reason were completely separate.
If these factors are taken into account the decision and be summarized into one sentence.
Do you go against your word or do you stay true to yourself?
Or, Do you dump more waste or less waste?
Completely ignore all factors of the situation along with the consequences.
If everyone has good will and follows the categorical imperative the answer in always the same.
In the eyes of Kant they would stay true to their word and dump less waste.

Kant completely separated reason and happiness
stating that where completely different parts of the human mind