Title
Amends baselines of Philippine territorial sea
Law
Republic Act No. 5446
Decision Date
Sep 18, 1968
Republic Act No. 5446 amends the baselines of the territorial sea of the Philippines to correct typographical errors, while clarifying that it does not affect the delineation of the territorial sea boundaries around Sabah.

Questions (Republic Act No. 5446)

RA 5446 amends Section 1 of RA 3046 to correct typographical errors in the specific description of the Philippine territorial sea baselines.

The baselines serve as the reference lines from which the breadth of the territorial sea is measured under international law and Philippine statutes defining maritime zones.

The Act specifically states that changes were made to correct typographical errors; no substantive change is expressly stated beyond correcting the text.

These technical parameters precisely define the baseline segments connecting geographic points/islands/rocks using coordinates (latitude/longitude), bearing (azimuth), and segment length (distance).

It indicates that the baseline system is composed of multiple connected segments (“lines”) between successive geographic points.

It signals that the baseline system is defined in a detailed, enumerated manner; the list of lines and coordinates is intended to be the controlling description.

It states that the definition of Philippine baselines in the Act is without prejudice to the delineation of baselines around Sabah over which the Philippines has acquired dominion and sovereignty.

To clarify that RA 5446’s baseline corrections/definitions do not affect (and should not be read to limit) any separate or future baseline delineation involving Sabah.

It does not create new claims; it protects the existing position that dominion and sovereignty were acquired and preserves the possibility of later baseline delineation around Sabah.

Upon its approval.

It shows approval on September 18, 1968.

The title indicates it amends baselines of the territorial sea; the first section confirms it amends Section 1 of RA 3046 specifically to correct typographical errors.

Because even minor typos in geodetic data can materially shift the location of baseline points/lines, affecting the measurement of the territorial sea and potentially maritime boundaries.

The amendment is intended to fix transcription/typographical mistakes in the baseline description, so courts and practitioners should treat it as correction of the technical baseline data rather than a redefinition of the entire baseline regime.

By mapping each segment’s defined points (including azimuth and distance) to verify the legally prescribed baseline geometry and to assess whether any dispute arises from interpretation, data accuracy, or application of the measured territorial sea.


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