Prime Minister Costas Karamanlis to attend NATO summit in Istanbul. To tomorrow.

Council of State plenum to examine constitutionality of government’s presidential decree aimed at granting permanent status to contract workers in the public sector.

Hellenic Railways Organization trains will not run between Velestino and Volos from today until July 8 because of work on the line. Passengers will be transported by bus between the two stations.

Communist Party leader Aleka Papariga holds a news conference presenting her party’s objections to the European Constitution and new anti-terrorism law, at 1 p.m. at the Zappeion Hall.

Deputy Defense Minister Vassilis Michaloliakos pays a three-day visit to Warsaw, Poland. He is expected to meet with his counterpart Janusz Zemke and sign a memorandum of mutual understanding on defense. He will also meet with Orthodox Metropolitan of Warsaw and All Poland Savvas. To Wednesday.

The first World Olympic Congress of Philosophy, titled “Philosophy, Competition and the Good Life,” is being held at the Anargyrios and Korgialeneios School on the island of Spetses. The conference is organized by Erasmus Professional Congress Organizers. Tel 210.725.7693, or visit www.erasmus.gr

Second International Museology Conference on “Technology for Cultural Heritage: Management-Education-Communication,” is organized by the Department of Cultural Development and Communication, University of the Aegean. It will take place on the island of Lesvos. To Friday. Call 22510.366.37 or visit www.aegean.gr/

culturaltec/museum/2004.

Communist-led anti-NATO rallies are planned for 8 p.m. at the Old University on Panepistimiou Street in Athens, at 7.30 p.m. outside Piraeus’s railway station and at 7 p.m. at the Venizelos statue in Thessaloniki.

Greece plays against Denmark or the Czech Republic in the semifinals of the Euro soccer championship in Portugal.

Deadline for immigrants to apply for work and residence permits.

The Netherlands take over the EU presidency.

Security measures come into effect at Olympic facilities.

Deadline for all countries involved in shipping to adopt UN anti-terrorism security requirements. They are mandatory for all merchant ships, ports and oil and gas terminals engaged in international trade.

President of the World Council of Hellenes Abroad (SAE) Andrew Athens visits Moscow to attend celebrations for the Olympic Flame’s arrival.