NINETEENTH CONGRESS OF THE 
REPUBLIC OF THE PHILIPPINES 
First Regular Session
‘-J1 
''
SEN 
S. No
ot tljf
72 JUL 13 P4 41
RCGIIVEP BY: —
Introduced by Senator Grace Poe
AN ACT
CREATING A RAINWATER HARVESTING FACILITY FOR THE MANAGEMENT, 
MAINTENANCE, REGULATION, AND UTILIZATION OF RAINWATER 
RUNOFF, AND IMPROVEMENT OF ECOLOGICAL CHARACTERISTICS OF 
CATCHMENTS WITH THE END IN VIEW OF ADDRESSING FLOODING AND 
WATER SHORTAGE IN URBAN AND RURAL CENTERS
EXPLANATORY NOTE
The Philippines has witnessed an increasing frequency and intensity of rain 
which causes severe flooding and results in unquantifiable economic losses. 
Although this has been primarily attributed to climate change, data shows that these 
woes are the result of poorly planned development with no provisions for control 
and regulation of runoff flows. Land-use conversion, deforestation, coupled with the 
lack of a retention/detention system are among the reasons why flooding occurs.
On the other side of the scale is the issue of the security of water supply for 
the growing urban and rural centers. The problem on one side could be the solution 
for the other if the necessary management, maintenance, and regulation of such 
runoff volume of water Is established. Thus, the solution being forwarded is to 
capture and store rainwater through a rainwater harvesting facility, and utilize it for 
irrigation, groundwater recharge, construction, firefighting, and other water supply 
purposes. Through this, water is conserved and runoff Is reduced.
The quantity and quality of runoff water is directly correlated with the quality 
and size of our catchment. Hence, emphasis on the protection, planning, 
management of catchment is at the core of the program. This will require the


participation of the agencies such as the Department of Environment and Natural 
Resources (DENR), Department of Agriculture (DA), Department of Public Works and 
Highways (DPWH), Department of Human Setclemenis and Urban Development 
(DHSUD) and the respective local government units.
Thus, the immediate approval of this bill is eagerly sought.
GRACE POE


NINETEENTH CONGRESS OF THE 
)
REPUBLIC OF THE PHILIPPINES 
)
First Regular Session 
)
Jennie
o{ tl}f ^nrrc'tarp
JUL13 P4*41
SEN,
S. No
Introduced by Senator Grace Poe
AN ACT
CREATING A RAINWATER HARVESTING FACILITY FOR THE MANAGEMENT, 
MAINTENANCE, REGULATION, AND UTILIZATION OF RAINWATER 
RUNOFF, AND IMPROVEMENT OF ECOLOGICAL CHARACTERISTICS OF 
CATCHMENTS WITH THE END IN VIEW OF ADDRESSING FLOODING AND 
WATER SHORTAGE IN URBAN AND RURAL CENTERS
Be it enacted by the Senate and the House of Representatives of the Republic of the 
Philippines in Congress assembled:
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Section 1. Short Title. - This Act shall be known as the "Rainwater Harvesting
Act"
Sec. 2. Declaration of Policy. - It is declared a policy of the State to protect 
the right of the people to a balanced and healthful ecology and advance the health 
and welfare of its citizens in accordance with the rhythm and harmony of nature. 
Pursuant thereto, the government and all its instrumentalities shall systematically 
integrate the concept of climate change in the various phases of policy formulation 
and development planning, in drawing up and implementing poverty reduction 
strategies and innovations that provide beneficial effects to the greatest number of 
people with the least cost and negative externalities.
In this light, and given the demands of a growing population, the State shall 
adopt measures and strategies in order to efficiently conserve water and help attain 
water security. Among other strategies on water conservation, rainwater harvesting 
facilities shall be established not only to conserve the supply of potable faucet water 
but also to prevent flooding in communities that sometimes result In devastating 
effects on human life and property. Both the public and private sectors are urged to 
actively participate In flood mitigating efforts and initiatives of the government.


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The State recognizes Metro Manila as one of the densest areas in the country.
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To mitigate the adverse effects of continuing growth in population and human
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settlements, the State shall ensure that Metro Manila loca* governments are
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capacitated to respond to threats wrought by natural calamities and disasters such
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as massive flooding. Towards this end, the State shall mandate the construction of
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rainwater harvesting facilities in all new public and private commercial. Institutional,
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Industrial, and residential developments in Metro Manila which will serve as a pilot
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area from which other simil?r areas can learn. Pursuant thereto, owners and
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developers of all new public and private realty development projects in Metro Manila
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requiring the Issuance of building permits are mandated to design and construct a
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rainwater harvesting facility to prevent or delay the release of rainwater and runoff
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water into the public drainage systems, creeks, and natural waterways.
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Sec. 3. Purpose. - The purpose of this Act is to establish minimum rainwater
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management requirements and controls to protect and safeguard the general health,
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safety, and welfare of the public. This seeks to meet that purpose through the
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following objectives:
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a. Minimize increase in rainwater runoff from any development both existing
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and proposed, in order to reduce flooding, siltation, increases 
in stream
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temperature, and stream bank erosion and maintain the integrity of stream
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channels;
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b. Minimize increase in non-point source pollution caused by rainwater runoff
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development which would otherwise degrade local water quality;
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c. Minimize the annual volume of surface water runoff that flows from any
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specific site during and following development to not exceed the pre-
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development hydrologic regime to the maximum extent practicable; and
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d. Reduce rainwater runoff rates and volumes, soil erosion, and non-point
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source pollution, wherever possible, through rainwater management controls
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and to ensure that these management controls are properly maintained and
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pose no threat to public safety.
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Sec. 4. Definition of Terms. - As used in this Act:
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a) Appiicant- refers to a property owner or agent who has filed an application
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for a rainwater management permit;


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b) Building refers to any structure built for the support, shelter, or enclosure of 
person, animals, chattels, or moveable property of any kind and which is 
permanently affixed to the land;
c) Building Official - refer .; to a local building official as appointed or designated 
pursuant to Presidential Decree (PD) 1096 or the National Building Code of 
the Philippines (NBCP);
d) Certificate of Occupancy - refers to permit issued by the Zoning Officer 
indicating that the use of the building or land in question is in conformity with 
the Zoning Ordinance or that there has been a legal variance therefrom, as 
provided by ordinance;
e) Channel - refers to a natural or artificial watercourse with definite bed and 
banks that conducts continuously or periodically flowing water;
f) Dedication - refers to the deliberate appropriation of property by its owner for 
general public use;
g) Detention - refers to a rainwater management practice of temporarily storing 
rainwater runoff to control the peak discharge rate and to likewise induce 
settling of pollutants through gravity;
h) Developer - refers to a person or entity who undertakes land disturbance or 
development activities. A developer may only be contracted to develop and 
may or may not be the owner of the development, such as a building 
structure being built;
i) Development - refers to any man-made change to improved or unimproved 
real estate. Including but not limited to buildings or other structures, mining, 
dredging, filling, grading, paving, excavation, or drilling operation;
j) Drainage Easement - refers to a legal right granted by the landowner to a 
grantee allowing the use of private land for rainwater management purposes;
k) Erosion and Sediment Control Plan - refers to a plan designed to minimize the 
accelerated erosion and sediment runoff at a site during construction 
activities;
l) Flood frequency — refers to a record of past flood events or occurrences that 
yield flood data estimatr's, used principally to compare expected changes in


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flood damages with the economic and social costs or benefits guiding a 
contemplated action;
m) Hotspot - refers to an area where land use or activities generate highly 
contaminated runoff, with concentrations of pollutants in excess of those 
typically found in rainwater;
n) Hydrologic regime - refers to the quantity and dynamics of water flow or the 
variations in the state and characteristics of a water body depending on 
location and time of the year, which may occur in regular oatterns;
0) Impervious Coverage - refers to those surraces that cannot effectively 
infiltrate rainfall (e.g., building rooftops, pavement, sidewalks, driveways, 
etc.);
p) Industrial Rainwater Permit - refers to a National Pollutant Discharge 
Elimination System permit issued to a commercial industry or group of 
industries which regulates the pollutant levels associated with industrial 
rainwater discharges or specifies on-site pollution control strategies;
q) Infiltration - refers to the process of percolating or gradually filtering 
rainwater into the subsoil;
r) Infiltration Facility - reters to any structure or device designed to infiltrate 
water into the subsurface. These facilities may be above grade or below 
grade;
s) Land Disturbance Activity - refers to any activity which changes the volume 
or peak flow discharge rate of rainfall from the land surface. This may include 
grading, digging, cutting, scraping, or excavating of soil, placement of fill 
materials, paving, construction, substantial removal of vegetation, or any 
activity which bares soil or rock, or involves the diversion or piping of any 
natural or man-made watercourse;
t) Landowner - refers to the legal or beneficial owner of the land, including 
those holding the right to purchase or lease the land, or any other person 
holding proprietary rights in the land;
u) Off-Site Facility - refers to a rainwater management installation located 
outside the subject property boundary described in the permit application for 
land development activity;


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v) On-Site Facility- refers to a rainwater management installation located within 
the subject property boundary described in the permit application for land 
development activity;
w) Rainwater Design Manual- refers to the Planning and Design Manual for the 
Control of Erosion, Sediment and Rainwater written by the Department of 
Public Works and Highways (DPWH);
x) Rainwater Management - refers to the use of structural or non-structural 
practices that are designed to reduce rainwater runoff pollutant loads, 
discha 'ge volumes, and/or peak flow discharge rates;
y) Rainwater Retrofit- refers to a rainwater management practice designed for 
an existing development site that previously had either no rainwater 
management practice in place or a practice inadequate to meet the rainwater 
management requirements of the site;
z) Rainwater Runoff - refers to water flow on the surface of the ground, 
resulting from precipitation;
Rainwater Treatment Practices - refers to measures, either structural or 
nonstructural, that is determined to be the most effective, practical means for 
preventing or reducing point source or nonpcint source pollution inputs to 
rainwater runoff and water bodies;
h\f)Recharge - refers to the replenishment of underground water reserves;
cc) Redevelopment - refers to any construction, alteration, or improvement 
exceeding one hundred (100) square meters in high-density areas where 
existing land use Is for commercial, industrial, institutional or multi-family 
residential purposes;
66)Stop Work Order - refers to an order issued which requires that all 
construction activity on a site be stopped; and
ee) Watercourse - refers to a permanent or intermittent stream or other body of 
water, either natural or man-made, which gathers or carries surface.
Sec. 5. Rainwater Harvesting Facility Requirement - A project owner or 
developer of a new commercial, institutional, industrial, and residential development 
project in Metro Manila, with a building footprint area of at least one hundred (100) 
square meters that requires the issuance of a building permit, shall reserve, develop.


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and maintain a rainwater harvesting facility with a minimum storage tank size in 
cubic meters calculated by dividing the building footprint area by 75.
The owner or developer of an ongoing development project in Metro Manila, 
that has no existing provision for rainwater harvesting shall build a facility within a 
period of three (3) years from the effectivity of this Act, or suffer the penalty 
imposed In Section 13 hereof.
When additions, alterations, conversions, and renovations of an existing 
building constructed after the effectivity of this Act fit within the minimum building 
footprint, the whole building shall be subject to the applicable provisions of this Act.
To conserve potable water, rainwater collected by a harvesting facility may be 
used for non-potable and suitable purposes, such as gardening and air-cooling 
processes, provided through a distinct and separate piping system from the potable 
water supply system. The landowner or developer may opt to utilize a system or 
technology that can recycle collected rainwater for potable uses such as bathing, 
dishwashing, or cooking, provided it meets the water quality standard of any 
government water agency or duly accredited water testing center.
Sec. 6. Requirements for Rainwater Management Rian. - All landowners or 
developers of proposed commercial, industrial and residential development or any 
residential multi-dwelling units of more than 1,000 sqm land area must submit 
Rainwater Management Plan (RMP) as part of the site development application and 
approval process.
The RMP shall include the following information:
a. Description of Existing Conditions - Description of the existing condition shall 
be shown on a map. It shall include:
1. Topographic map with 1.0 meter minimum contours line or an 
appropriate contour interval of the land proposed for development or 
redevelopment;
2. Location natural waterways including banks and centerline of streams 
and channels;
3. The normal shoreline, coastlines, outline of lakes, natural depressions, 
and ponds, including drainage flow lines; and


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III.
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4. Quantification of flows (discharge and volume) in their natural 
condition.
b. Proposed Site Development Plan - The proponent shall provide Site
Development Plan (SDP) in an appropriate scale and size showing the 
following:
I. Retention/detention basins and lines of inflow and outflow;
ii. The location, size, and slope of rainwater conduits and drainage 
swales;
Rain, sanitary and combined sewer and outfalls;
Delineation of upstream and downstream drainage features and 
watersheds which might be affected by the development; and 
V. Other environmental features Including limits of wetlands areas, green 
buffers, planting strips, and any designated natural areas for rainwater 
management.
c. Description of Proposed Rainwater Management System (RMS) - The 
proposed RMS shall be designed to safely and completely manage rainwater 
runoff onsite or offsite and provide facility to regulate the increased rainwater 
runoff and help maintain the natural hydrologic cycle and condition of flow in 
a locality. The purpose of the RMS Is to reduce the risk of downstream 
flooding by reducing the amount of runoff and regulating the discharge 
release at a given time.
The proposed RMS shall be accompanied by hydrologic and hydraulic 
calculations to adequately demonstrate the effectiveness of the plan. It shall 
be designed to meet the desired flood frequency which is designated to a 
particular drainage structure as stated in the Design Manual of the DPWH: 
Provided, That a 25-year frequency or higher may be required for major rivers 
and waterways, subject to the design criteria In Section 9 of this Act.
The RMP plan shdli be accompanied by relevant data such as rainfall 
data In a locality, maps, and other descriptive material to include the 
following.
1) The extent of the catchment, drainage channels on-site, and direction of the 
flow of the channels including the final outfall of the discharge from the site;


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2) Hydrologic and hydraulic design calculations fc:' the pre-development and
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post-development conditions for the design storm proposed in Section 5. The
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calculations for determining peak flows are found In the Rainwater Design
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Manual to include a description of design storm frequency, intensity, and
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duration, time of concentration, soil curve number or runoff coefficients, peak
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runoff rates and total runoff volumes, infiltration rates, culvert capacities, flow
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velocities, data on the Increase in rate and volume of runoff for the design
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storm; and,
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3) Technical specifications of the Proposed SMS, providing descriptions of
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proposed rainwater conveyance practices to be on-site, existing off-site
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rainwater conveyance system including receiving streams, channels, and
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outfall and inlet locations. Include elevations of locations and high water
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elevations.
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Sec. 7. Chemicals, Effluents, and other Contaminants. - Prior to the issuance
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of a building permit for their development or re-development, all industrial plants
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and estates shall secure the appropriate certification from the Department of
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Environment and Natural Resources (DENR) that all chemicals used in their
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operations, their by-products, effluents, and other operational discharges do not
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contain harmful contaminants t!iat can be washed by or mto the rainwater.
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The type of roofing must also be Identified and assessed if used for collecting
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rainwater as some roofing materials may seep chemicals that can cause adverse
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effects if Ingested, used in irrigation, fishponds, groundwater recharge, among
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others.
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Sec. 8. Utilization of Rainwater. - The following are the specific utilization of
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rainwater and the recommended facility to harness its volume for the intended use:
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a) Rainwater for Rural Irrigation - Agriculture in the Philippines is predominantly
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rainfed. Rainwater catchments thus hold significant potential for improvement
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of rainwater use efficiency and sustainment of rainfed and upland agriculture
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in the country.
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b) Rainwater for Urban Irrigation - Most of the urban centers are currently
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dependent on Class A water quality for irrigation supply which is costly and
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environmentally unsustainable. Utilizabon of Class A wate^ for yard irrigation


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shall be minimized if not prohibited. Instead, rainwater shall be utilized for
such purposes. The irrigation water shall come from the rainwater detention 
system.
Rainwater as a source for urban irrigation and/or watering of lawns 
shall be indicated in the development plans. A secondar>^ source of water for 
irrigation may also come from treated greywater from the effluent of the 
treatment facility.
c) Rainwater for Groundwater Recharge - The RMS is intended mainly to ensure 
the natural balance of the hydrologic cycle by allowing rainwater to recharge 
the groundwater table that sustains the yield and production of deep wells. 
The proposed facility to allow for recharge may be in the form of the 
following best management system:
1) Lagoon or retention pond that allows for natural seepage to the 
groundwater aquifer.
2) Swales and depression storage
3) Porous or pavers blocks on some developed areas
4) Retention channels, etc.
The sizes and dimensions of the above facility is dependent on the rainfall 
Intensity and the size of the development.
d) Rainwater for Fire fighting - Rainwater may substitute or augment the 
firefighting requirement, subject to health and corrosion standards. A 
separate storage tank for the fire water reserve shall be constructed. Other 
laws concerning the requirement of water for firefighting shall be considered.
e) Rainwater for construction - Simple filtration systems and other applicable 
methods to remove suspended solids and other coarse materials may be 
employed to improve water quality and avert adverse effects on construction 
equipment and the environment.
f) Rainwater for Non-Potable Water Supply Source - Rainwater subjected to 
primary and secondary treatment can be a viable secondary source for water 
supply in urban and rural areas. It can be used for the following purposes:
1) Washing of cars, floor yards;


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2) Flushing of the toilet (water quality should meet certain standards to 
avoid discoloration of fixtures); and
3) Fish ponds, aquariums, and the like.
g) Rainwater for potable uses - To make it potable, rainwater may be collected, 
processed, subjected to filtering innovations or technological interventions, 
and used for drinking, cooking, dishwashing, and bathing, subject to water 
standards. Potable water quality shall at all times comply with the 
requirements and standards of the Philippine National Standard for Drinking 
Water (PNSDW).
h) Rainwater for Ecological Requirements - Seasonal fluctuation of rainfall affects 
the Rain flora and fauna of waterways. The management of rainwater runoff 
provides a steady release of water to the waterways enhancing their 
continued supply
Sec. 9. Preparation of the Rainwater Design Manual. -The DPWFI is hereby 
directed to prepare the Rainwater Design Manual (RDM) which must provide, among 
others, information on the following: (1) conveyance system of the rainwater 
harvesting facility, (2) make of the rainwater retention facility, (3) management of 
rainwater discharge to control flooding, (4) protection of the local water bodies from 
pollution through rainwater discharge treatment, (5) dike or bank protection for 
water bodies receiving rainwater discharge, and (6) utilization options for collected 
rainwater.
The RDM shall contain the following guidelines:
a) All sites shall establish a rainwater management system to control the peak 
flow rates of rainwater d;scharge associated with specified design storms and 
reduce the generation of rainwater for the site to provide treatment for both 
water quality and quantity. Peak post-construction rainwater runoff will not 
exceed peak pre-construction rainwater runoff from the site to the greatest 
extent possible;
b) All rainwater runoff generated from any development shall not discharge 
untreated rainwater directly into a jurisdictional wetland or local water body 
without adequate treatment;
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c) structural and non-structural Rainwater Treatment System (RTS) shall be
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designed to treat the first 20 mm of rainwater runoff. That means for every
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one (1) hectare of new development, a 200 cubic meters of
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detention/retention tank shall be constructed to minimize flooding and
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improve water quality. Sanitary wastewater treatment facilities shall be
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designed and installed to comply with existing health regulations and meet
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the Effluent Standard of the DENR;
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d) Untreated sanitary waste should not be discharged to waterways and land
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surfaces without proper treatment and shall not come in contact with
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rainwater runoff. For discharge of treated effluent to water bodies, it shall
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meet the river classification. For unclassified rivers and watercourses. Class C
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water shall be met. For discharge to an urban drainage system, the minimum
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requirement shall be Class D effluent. Any variation with the required
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standard set by DENR, the prescription provided by the DENR shall be
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followed;
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e) To protect stream channels from degradation, the velocity of runoff water
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shall be limited to less than 1.0 m/s otherwise bank protection shall be
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provided;
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f) Rainwater discharges to critical areas with sensitive resources (including
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shellfish beds, swimming areas, water supply reservoirs, and groundwater
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recharge areas) may be subject to additional performance criteria, or may
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need to utilize or restrict certain rainwater management practices;
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g) Rainwater discharges from land uses or activities with higher potential
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pollutant loadings, known as "hotspots," 
may require the use of specific
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structural and pollution prevention practices;
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h) Rainwater storage and drainage systems must be secured from mosquito
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breeding and those of other similar insects that may endanger public health;
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i) Prior to design, applicants are required to consult with the Building Official to
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determine if they are subject to additional rainwater design requirements; and
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j) For existing development or develop areas, the rainwater management
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system requirement may be imposed on the following conditions:
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1) Existing or old development shall submit to the Building officials plans 
of the existing "alnwater management system to demonstrate its 
contribution to flood control and mitigation and rainwater management 
program;
2) That at least 50% of the required volume shall be met within five (5) 
years from the effectivlty of this Act; and
3) The total required volume of storage may be the cumulative volume 
stored from various storages such as cistern, lagoon onsite or offsite, 
and depression storage
The DPWH, Department of Human Settlements and Urban Development 
(DHSUD), DENR, and local government units (LGUs) shall require the incorporation 
of a Rainwater Management System in the design of all new commercial, 
Institutional, industrial, and residential development projects in Metro Manila. The 
LGUs shall ensure that these facilities are built during the construction phase of the 
projects.
In formulating the design manual, the DPWH shall consult the experts or the 
Department of Science and Technology (DOST) and DENR on requirements that 
entail scientific bases or study.
Sec. 10. Construction Inspection. -
a) The applicant must notify the Building Official in advance before the 
commencement of construction;
b) All applicants for commercial and multi-family residential units over four (4)
units are required to submit actual record drawings for any rainwater 
management practices located on-site after final construction Is completed. 
The Plan must show the final design specification for ail rainwater 
management facilities and must be certified by a professional engineer. A 
final inspection is required before the release of any performance security, 
performance bond, or guarantee;
c) The City/Municipal Engineer shall inspect all drainage facilities while under 
construction. When facilities are not constructed according to approved 
plans, the local government unit (LGU) has the explicit authority to compel 
compliance and have any situations corrected which are not according to the
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approved plans. All drainage facilities located on private property, whether 
dedicated to the LGU or not, shall be accessible at ail times for inspection by 
the City/Municipal engineer or other responsible public officials; and 
d) The City/Municipal Engineer shall inspect all sanitary waste treatment facilities 
while under construction and upon completion to ensure proper installation 
and connection to wastewater collection systems when applicable. Proper 
function of sanitary waste treatment facilities is required prior to final 
approval and issuance of a certificate of occupancy.
Any contracted architect or civil engineer employed by the owner or developer 
to plan and supervise the construction of the facility shall not be precluded from 
inspecting the construction work to check and determine compliance with the plans 
and specifications of the building, pursuant to the provisions under Inspection and 
Supervision of Work or Section 308 of the National Building Code of the Philippines.
Sec. 11. Maintenance and Repair of Rainwater Faciiities. - The owner or 
developer is expected to perform regular maintenance and repair of the rainwater 
facility whenever necessary to make sure that this is in working condition, safe for 
public use and the environment. At the minimum, the following must be 
undertaken: (1) visual inspection and cleaning of the facility after major rain events, 
(2) regular clearing of all sediments, silts, and debris, (3) drainage clean-up, and 
(4) replacement of filters and insect screens as necessary.
In addition, the owner or developer shall comply with the following 
requirements:
a) All rainwater management facilities must undergo a regular yearly inspection 
process at a frequency sufficient to determine the functioning ability of the 
conveyance system and any repair needs; at a 'Minimum, this should include 
inspection prior to the beginning of Typhoon Season, prior to any forecast 
major rains that may equal the design requirements and after any major rain 
events;
b) All drainage facilities located on private property, whether dedicated to the 
LGU or not, shall be accessible at all times for Inspection by the City/Municipal 
Engineer or other responsible public officials. All sanitary waste treatment 
facilities located on private property shall be accessible for inspection for
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proper function by the City/Municipai Engineer or other responsible public
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officials where there is reason to suspect that a malfunction has resulted in
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rainwater runoff pollution by unsanitary waste;
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c) Depending on the type of facility, mosquito or insect screens must be
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replaced as necessary to avoid infestation or breeding ground for pathogens;
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d) Parties responsible for the operation and maintenance of a rainwater
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management facility shall make records of the installation and of all,
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maintenance and repairs, and shall retain these records for at least five years.
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These records shall be made available to the City during inspection of the
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facility and other reasonable times upon request; and
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e) The Building Official will notify the owner in writing that maintenance is
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required. The owner will have 60 days from the receipt of such written notice
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to bring the facility into proper working order.
14 
Sec. 12. Reportoria! Requirements. - The DPWH shall require the owner or
15 
developer of all new commercial, institutional. Industrial, and residential
16 
development projects to submit a compliance report within twelve (12) months from
17 
the date of the completion of the project.
18 
The DPWH shall henceforth require the building owners covered under
19 
Sections 5 and 6 of this Act to submit an annual report of the performance of such
20 
rainwater retention facility which may include information on the total volume of
21 
retained rainwater and its utilization.
22 
Sec. 13. Enforcement and Penalties.-
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a) Any person found to be In violation of any of the terms and provisions of this
24 
Act shall be found guilty of a misdemeanor and subject to a fine not to
25 
exceed Fifty Thousand Pesos (P50,000) or imprisoned for no more than
26 
ninety (90) days or both such fine and imprisonment. A continuance of a
27 
violation without reasonable effort on the part of the defendant to correct
28 
same shall be and constitute a new and separate offense each day;
29 
b) In the case of a partnership, association, corporation, or any juridical person,
30 
the penalty shall be imposed upon the president, treasurer, or any other
31 
officer or person responsible for the violation;
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1 
c) If the offender is a foreigner, the foreigner shall be deported immediately
2 
without further proceedings after payment of the fine;
3 
d) If the Building Official shall find that the provisions of this ordinance are
4 
violated, the person responsible for such violation shall be notified in writing,
5 
indicating the nature of the violation and ordering the action necessary to
6 
correct it. Among those actions which he/she may be ordered is
7 
discontinuance of any actions on site.
8 
Sec. 14. Incentives — Landowners or developers of existing structures built
9 
prior to the implementation of this Act who may opt to Install a rainwater harvesting
10 
system or a rainwater retrofit In accordance with this law shall receive a realty tax
11 
incentive from the local government which may be in the form of a tax discount of
12 
not less than three percent (37o) per annum over and above the regular discount
13 
provided by the local government. An additional two percent (2%) tax discount per
14 
annum will be granted to those who will invest in any innovation or a technology
15 
that will recycle collected rainwater for potable uses within the standard prescribed
16 
by law.
17 
Sec. 15. Obligation of the Regulatory Agencies. — The DPWH, DENR, DOST,
18 
LGUs, their sub-agencies, and subsidiaries are mandated to provide full assistance to
19 
every project owner or developer covered in this Act in order that the requirements
20 
and standards prescribed herein may be properly executed in the design and
21 
construction of rainwater harvesting facilities. Agency assistance shall Include proper
22 
advice, technical guidance, provision for needed data, and facilitation of required
23 
documents. As much as practicable, all technical and documentation requirements
24 
must be at zero to minimal cost to the applicant project owner or developer who
25 
shall establish, manage, and maintain a rainwater harvesting facility.
26 
Sec. 16. Implementing Rules and Regulations. — Within sixty (60) days from
27 
the effectivity of this Act, the Secretary of Public Works and Highways shall, in
28 
coordination with the Secretary of Agriculture, Secretary of the Interior and Local
29 
Government, Secretary of Environment and Natural Resources, Secretary of Human
30 
Settlements and Urban Development, and Secretary of Science and Technology,
31 
promulgate the rules and regulations for the effective implementation of this Act.
32 
The implementing rules and regulations shall include the standards and guidelines
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2
3
4
5
6
7
8 
9
10
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for the design, construction, installation, materials, site selection and planning, site- 
specific considerations, and maintenance of the rainwater harvesting facility.
Sec. 17. Separability Clause. — If any orovision or part of this Act is declared 
invalid or unconstitutional, the remaining parts or provisions not affected shall 
remain in full force and 
effect.
Sec. 18. Repealing Clause. - All laws, orders, rules, regulations, and 
issuances, or parts thereof, which are inconsistent with this law are hereby repealed 
or modified accordingly.
Sec. 19. EffectMty Clause. - This Act shall take effect fifteen (15) days after 
its publication in the Official Gazette or in a newspaper of national circulation.
Approved,
16