27. Presidential Decree(PD) No.552- prescribes sanitation requirement in operating establishments & facilities serving the public.
28. PD 600 or Prevention & Control of Marine Pollution- prevents & controls dumping of wastes & other into the sea.
29. PD 824- created Metropolitan Manila Development Authority(MMDA) to coordinate & direct solid waste collection & disposal in metro manila among other functions.
30. PD 856 or Sanitation Code- provides for efficient collection & disposal of sewage, chemicals, etc. in cities & municipalities.
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32. PD 1151 or 1977 Environmental Policy- requires project proponents to prepare environmental impact statement which includes mitigation measures for pollution.
33. PD 1152 or Environmental Code- vested authority on LGU to collect, transport, process & dispose solid wastes.
34. PD 1160- vested authority on barangay chairmen to enforce pollution control & environmental laws..
35. RA 7160 or The Local Government Code- redefines, among others, the role of LGU’s in solid waste disposal system.