EN BANC G.R. No. 203766 April 2, 2013 ATONG PAGLAUM, INC., represented by its President, Mr. Alan Igot, Petitioner, vs. COMMISSION ON ELECTIONS, Respondent.

the COMELEC shall adhere to the following parameters:

1. Three different groups may participate in the party-list system: (1) national parties or organizations, (2) regional parties or organizations, and (3) sectoral parties or organizations.

2. National parties or organizations and regional parties or organizations do not need to organize along sectoral lines and do not need to represent any "marginalized and underrepresented" sector.

3. Political parties can participate in party-list elections provided they register under the party-list system and do not field candidates in legislative district elections. A political party, whether major or not, that fields candidates in legislative district elections can participate in party-list elections only through its sectoral wing that can separately register under the party-list system. The sectoral wing is by itself an independent sectoral party, and is linked to a political party through a coalition.

4. Sectoral parties or organizations may either be "marginalized and underrepresented" or lacking in "well-defined political constituencies." It is enough that their principal advocacy pertains to the special interest and concerns of their sector. The sectors that are "marginalized and underrepresented" include labor, peasant, fisherfolk, urban poor, indigenous cultural communities, handicapped, veterans, and overseas workers. The sectors that lack "well-defined political constituencies" include professionals, the elderly, women, and the youth.

5. A majority of the members of sectoral parties or organizations that represent the "marginalized and underrepresented" must belong to the "marginalized and underrepresented" sector they represent. Similarly, a majority of the members of sectoral parties or organizations that lack "well-defined political constituencies" must belong to the sector they represent. The nominees of sectoral parties or organizations that represent the "marginalized and underrepresented," or that represent those who lack "well-defined political constituencies," either must belong to their respective sectors, or must have a track record of advocacy for their respective sectors. The nominees of national and regional parties or organizations must be bona-fide members of such parties or organizations.

6. National, regional, and sectoral parties or organizations shall not be disqualified if some of their nominees are disqualified, provided that they have at least one nominee who remains qualified.