div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 5button div class=ts-image amp-img class=ts-thumb alt=Page 5: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office 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class=ts-pagebuttonPage 8button div class=ts-image amp-img class=ts-thumb alt=Page 8: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails8jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 9button div class=ts-image amp-img class=ts-thumb alt=Page 9: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails9jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 10button div class=ts-image amp-img class=ts-thumb alt=Page 10: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails10jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 11button div class=ts-image amp-img class=ts-thumb alt=Page 11: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office src=https:reader035vdocumentsusreader035viewer20220707215ee2b866ad6a402d666d0699html5thumbnails11jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 12button div class=ts-image amp-img class=ts-thumb alt=Page 12: · 19 PNS --- refers to Philippines National Standards consistent with Section 26 of RA No 8749 otherwise known as the Philippine Clean Air Act of 1999 20 Regional Office 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