For years of engagement in Environmental Consulting and Construction, we have gathered tons of free resources.

Ridge to Reef, Inc. shares in this Library the relevant and easy-access references for proper management of the environment. Categories of these references include Land, Water, Air, and People. It contains articles, books, and environmental laws as references in formulating and crafting plans and for informed decision-making.

As we thrive in this "new norm", Ridge to Reef believes we must all be equipped and ready to learn relevant information that will allow us to function effectively and efficiently.


SLF Design and BuildEnvironment
DAO 1993-14 Rev IRR of PD 984.PDFAir
DAO 2000-81 IRR of RA 8749 Clean Air Act.pdfAir
DAO 2000-82 Integrated Air Quality Improvement Framework.pdfAir
DAO 2006-03 DENR 3rd Party Accreditation for Source Emission.pdfAir
DMC 1997-10 SO2 Fuel Burning Clarification on Section 60(B) DAO 1993-14.pdfAir
RA 8749 Philippine Clean Air Act of 1999.pdfAir
JAO 2006-01 EVTP Environmental Technology Verification Protocol.pdfAir
DAO 2003-04 BLIST Airshed and Gov Board (initial).pdfAir/Airshed
DMC 2002-13 Establishment of Geothermal Areas as Airsheds.pdfAir/Airshed
DAO 1994-24 Mobile Sources.pdfAir/Mobile Sources
DAO 1998-46 1998 Rev Rules and Regulations Air Pollution from Motor Vehicles.pdfAir/Mobile Sources
DAO 1998-47 IRR for Leaded Gasoline.pdfAir/Mobile Sources
DAO 2003-25 Hydrocarbon Std for Motorcycles.pdfAir/Mobile Sources
DAO 2003-51 Rev Emission Std for in-use Motor Vehicles with Comp-Spark Ignition.pdfAir/Mobile Sources
DAO 2007-27 Rev Emission Std for Motor Vehivles with Comp-Spark Ignition.pdfAir/Mobile Sources
DAO 2008-09 Revised Cert of Conformity for New Motor Vehicles.pdfAir/Mobile Sources
EO 1997-446 Phase out of Leaded Gasoline.pdfAir/Mobile Sources
DRAFT DAO on Mass Rate Emission Standards.docAir/Other
MEMO 2008 Sulfur Revoke.pdfAir/Other
RA 8749 Fact Sheet.PDFAir/Other
RA 8749 Fact Sheet.PDFAir/Other
ANNOUNCEMENT ban on CFCs and Halons.pdfChemical
EMB MEMO 10.2.2003 Small Quantity Importation.pdfChemical
DAO 1997-38 CCO for Mercury.pdfChemical/DENR-AO
DAO 1997-39 CCO for CN.pdfChemical/DENR-AO
DAO 1998-58 PCL.pdfChemical/DENR-AO
DAO 2000-02 CCO for Asbestos.pdfChemical/DENR-AO
DAO 2000-18 CCO for ODS.pdfChemical/DENR-AO
DAO 2004-01 CCO for PCB.pdfChemical/DENR-AO
DAO 2004-08 Revised CCO for ODS.pdfChemical/DENR-AO
DAO 2005-05 CCO for other substances.pdfChemical/DENR-AO
DAO 2005-27 Revised PCL.pdfChemical/DENR-AO
DAO 2007-19 PCB Storage.pdfChemical/DENR-AO
DAO 2007-23 Addtl Req for PCL Cert.pdfChemical/DENR-AO
DMC 2000-12 Sched of Fees RA 6969.pdfChemical/DENR-Memorandum Circular
DMC 2002-02 Withdrawal of CO2 ban fire ext.pdfChemical/DENR-Memorandum Circular
DMC 2002-12 EMB RO authority for RA6969.pdfChemical/DENR-Memorandum Circular
DMC 2005-003 Admin Fines to RA 6969 and DAO 1992-29.pdfChemical/DENR-Memorandum Circular
DMC 2005-23 Registration ODS.pdfChemical/DENR-Memorandum Circular
DMC 2009-02 Temporary Ban-Endosulfan.pdfChemical/DENR-Memorandum Circular
EMB MC 2003-003 Waste Mgt Service Provider.pdfChemical/EMB-Memorandum Circular
EMB MC 2003-011 Compliance Monitoring.pdfChemical/EMB-Memorandum Circular
EMB MC 2005-03 List of alternatives to ODS.pdfChemical/EMB-Memorandum Circular
Revised PM for DAO 2003-30.pdfEnvironmental Impact Assessment
PD 1586 EIS System.pdfEnvironmental Impact Assessment
PD 1586 EIS System.pdfEnvironmental Impact Assessment
MEMO 2007-23 Fines Fastfood.pdfEnvironmental Impact Assessment
EO 190 Golf Course DENR.pdfEnvironmental Impact Assessment
EMB MEMO 9.08.2005 Fines Clar Sec11 DAO 2003-30.pdfEnvironmental Impact Assessment
EMB MC 2010-004 ECA map.pdfEnvironmental Impact Assessment
EMB MC 2010-002 Clarify DMC 2010-14.pdfEnvironmental Impact Assessment
EMB MC 2007-001 EIA Review Manual.pdfEnvironmental Impact Assessment
500+ Environmental Laws CollectionEnvironment


948, Nidea Sobrecarey St.
17-B Obrero, Davao City, 8000


Email: [email protected] 
Tel No.: +63 917 146 2403 
Phone No.: (082) 224 6193


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Our Clients:
Municipality of Midsayap
AboitizPower Therma South, Inc, Davao City
Isla Norte Corporation
Vivant Corporation
DENR EMB 12 (Koronadal)
Municipality of Nabunturan
Province of Davao del Norte
AboitizPower Therma Visayas, Inc, Toledo City
Holcim Mining & Dev't Corp.
Nippon Steel
Nenita Stock Farms Davao City
Alsons Aquaculture Corp., Alabel, Sarangani Province
Municipality of Malapatan
EMB Region VII
GIZ (German International Cooperation)
Oro Cemento (San Miguel Corp.)
City of Mati
Province of Davao del Sur
Municipality of Pigcawayan
Municipality of Baganga
D'Leonor Inland Resort & Adventure Park