Legal basis and effectivity rule
- Proclamation No. 186 fixes the date of effectivity of Republic Act No. 505, titled “An Act to Create the Provinces of Oriental Mindoro and Occidental Mindoro.”
- Section 8 of Republic Act No. 505 empowers the President to set the Act’s effectivity date.
- Proclamation No. 186 sets the effectivity date as November 15, 1950.
- Republic Act No. 505 takes effect on November 15, 1950 by this fixing of the date of effectivity.