and any aviation security agreement that becomes binding on both Parties.

2. The Parties shall, in their mutual relations, act as a minimum, in conformity with

the aviation security provisions established by the International Civil Aviation

Organization and designated as Annexes to the Convention to the extent that such

security provisions are applicable to the Parties; they shall require that operators of

aircraft of their registry or operators of aircraft who have their principal place of

business or permanent residence in their territory or are established in their territory

under the EU Treaties and have received valid operating licences in accordance with

European Union Law and the operators of airports in their territory act in conformity

with such aviation security provisions.

3. The Parties shall provide upon request all necessary assistance to each other

to prevent acts of unlawful seizure of civil aircraft and other unlawful acts against the

safety of such aircraft, their passengers and crew, airports and air navigation

facilities, and any other threat to the security of civil aviation.

4. Each Party agrees that such operators of aircraft shall be required to observe

the aviation security provisions referred to in paragraph 2 above required by the other

Party for entry into the territory of that other Party and also for departure from, or

while within, the territory of the Republic of Singapore. For departure from, or while

within, the territory of the Portuguese Republic, operators of aircraft shall be required

to observe aviation security provisions in conformity with European Union law. Each

Party shall ensure that adequate measures are effectively applied within its territory

to protect the aircraft and to inspect passengers, crew, carry-on items, baggage,

cargo and aircraft stores prior to and during boarding or loading. Each Party shall

also give sympathetic consideration to any request from the other Party for

reasonable special security measures to meet a particular threat.

5. When an incident or threat of an incident of unlawful seizure of civil aircraft or

other unlawful acts against the safety of such aircraft, their passengers and crew,

airports or air navigation facilities occurs, the Parties shall assist each other by

facilitating communications and other appropriate measures intended to terminate

rapidly and safely such incident or threat thereof.

6. When a Party has reasonable grounds to believe that the other Party has

departed from the provisions of this Article, the first Party may request consultations.

Such consultations shall start within fifteen (15) days of receipt of such a request

from either Party. Failure to reach a satisfactory agreement within fifteen (15) days

from the start of consultations shall constitute grounds for withholding, revoking,

suspending or imposing conditions on the authorizations of the airline or airlines

designated by the other Party. When justified by an emergency, or to prevent further

non-compliance with the provisions of this Article, the first Party may take interim

action at any time.

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