By William James
LONDON (Reuters) - British lawmakers demanded on Tuesday that Prime Minister Theresa May change her plans to ditch the European Union's Charter of Fundamental Rights in the latest clash in parliament over the government's Brexit blueprint.
Parliament is debating legislation which will enact Britain's exit from the EU in March 2019 and copy EU law into British law - a project described by officials as "one of the largest legislative projects ever undertaken in the UK".
The bill is testing May's ability to govern effectively after she lost her parliamentary majority in June, leaving her leading a fragile minority government and in charge of a Conservative Party split on how best to leave the EU.
On Tuesday, the focus of an eight-day debate, which has already forced May's ministers into some concessions, fell on the government's plan not to include the Charter of Fundamental Rights in its mass "cut and paste" of EU law.
The government says there is no need to copy across the EU charter because all it does is codify rights that exist through other legal instruments. Critics say that abandoning it is an unnecessary risk that could dilute some citizens' rights.
"The charter is the most effective key to unlocking vital rights, and the failure to transpose it and make it operable in UK law is to lock those rights away and deny UK citizens the key to accessing them," said lawmaker Paul Blomfield, one of the opposition Labour Party's Brexit policy team.
The bill is currently on its third of eight debates that comprise an early stage in the lawmaking process. Lawmakers are able to amend the legislation if they can win a simple majority vote, but any changes may yet be overruled.
Several of those lawmakers speaking against the government's plans were members of May's own party, raising the possibility of an embarrassing parliamentary defeat when the amendments are voted upon some time after 2000 GMT.
The government has so far avoided such defeats, but has had to make concessions to rebels to do so. The toughest test, set to center on the issue of fixing the date and time of Britain's EU exit in law, is yet to come. No date has been fixed yet for the remaining debates.
The rights charter came into force in 2009 through the EU's Lisbon Treaty and brings together the fundamental EU-protected right in a single document under six titles: Dignity, Freedoms, Equality, Solidarity, Citizens' Rights, and Justice.
It is one of only a handful of exceptions contained within the government's Brexit blueprint which sets out to preserve EU law after Britain leaves the bloc to give businesses certainty that they won't face overnight rules changes.
(Editing by Stephen Addison)