Proclamation No. 548, s. 2004 - Signed on February 9, 2004: Declaring the municipalities of Diffun, Cabarroguis, Aglipay, Maddela and Nagtipunan, all in the Province of Quirino, as a protected area pursuant to R.A. No. 7586 (Nipas Act of 1992) which shall be known as the Quirino Protected Landscape.

Signed on February 9, 2004: Declaring the municipalities of Diffun, Cabarroguis, Aglipay, Maddela and Nagtipunan, all in the Province of Quirino, as a protected area pursuant to R.A. No. 7586 (Nipas Act of 1992) which shall be known as the Quirino Protected Landscape.