(Adds Frattini comments)
By Patrick Lannin
RIGA, March 12 (Reuters) - The United States signed up Estonia and Latvia on Wednesday to bilateral deals that will lead to visa-free travel, risking further European Union ire a day ahead of tough EU-U.S. security talks.
U.S. Secretary for Homeland Security Michael Chertoff signed the deals in Estonia and Latvia a day before he was due to meet European Justice and Security Commissioner Franco Frattini in Slovenia.
The Czech Republic signed a similar deal last month, sparking much uproar within the EU. The executive European Commission and some EU states have accused the signatories of ignoring EU solidarity and the bloc's competence on visas.
Critics said that pact infringed on the EU's authority over visa and border policy and voiced fear that Washington may use such deals to hand over more intrusive personal data on air passengers. Prague says it acted legally.
Frattini said on Wednesday that Thursday's talks with the United States would be friendly but tough because of the signature of these individual pacts.
"The ministers agreed that memoranda already signed and to be signed by other member states should not be considered as operational documents (but) rather as political documents," Frattini told a news conference after a meeting of EU interior ministers in Slovenia.
Chertoff said Washington was not undermining EU powers, adding signatories would have to wait a long time for visa-free travel if they waited for a deal at the level of the whole EU.
"I have assured our European partners in Brussels that we have the utmost respect for EU law and EU competences," he told a news conference in Riga, Latvia's capital.
Most EU states have U.S. visa waivers, but not 11 of the 12 mostly ex-communist states that joined the bloc in 2004 and 2007, as well as older member Greece.
TWIN-TRACK
The accords spell out what Estonia and Latvia need to do to be allowed to join the visa waiver programme.
Frattini and a number of EU states wanted to negotiate the visa deals for the whole bloc at once, but some countries excluded from the visa waiver programme said they cannot not wait any longer.
EU diplomats agreed on Wednesday to defuse the intra-EU crisis by adopting a "twin-track" approach, Czech Deputy Prime Minister Alexandr Vondra told Reuters.
Vondra said this would allow talks on individual deals to go on while experts will work on a mandate for the EU executive, defining what exactly EU and national competences on visa waiver are. "We can proceed in our bilateral talks," Vondra said.
"Some issues need to be clarified, the area of shared competences ... but we are not ready to wait any more," he said in a telephone interview.
Latvian Foreign Minister Maris Riekstins his country should not wait until for visa-free deals with all other EU countries.
Poland, the biggest EU newcomer, is bitter that Washington refuses to include the country in the visa waiver scheme even though Polish troops have helped in the U.S.-led military campaign in Iraq.
Countries signing bilateral pacts do not get immediate visa-free status, but Washington will make access easier when they fulfil a number of security criteria, even if their visa rejection ratio is high.
In the Latvian case, this involves tight control on passport issuance, information sharing and, if direct flights begin, allowing armed air marshals on U.S. carriers to and from Latvia.
Estonia agreed to U.S. inspections at its border guard service, said Estonian Interior Minister Juri Pihl.
Hungary is expected to sign an agreement later this month.
Frattini hopes the EU and the United States could endorse the visa waiver programme for all 27 EU states at a joint summit in June and implement it by the end of 2008. (reporting by Patrick Lannin in Riga and Ingrid Melander in Brussels; additional reporting by David Mardiste, Manca Ulcar, Marja Novak and Darren Ennis; Editing by Richard Williams)