"entry into force of" is correct and usable in written English.
It is often used to describe when a law, regulation, or contract comes into effect. For example, "The entry into force of the new safety regulations is set for March 1st."
"Three years after the entry into force of this regulation, the voluntary scheme will automatically become mandatory," one paragraph reads.
With the entry into force of the Lisbon Treaty in 2009, the Parliament assumed further legislative powers.
So the UK will need an interim deal to provide cover in the years between leaving the EU and the entry into force of the FTA.
Thanks to the entry into force of the North American Free-Trade Agreement 20 years ago, the export sector has been knocked into shape by international competition.
It concluded: "I therefore agree that these confidentiality requirements shall apply for four years after entry into force of the TPP, or if no agreement enters into force, for four years after the last round of negotiations".
The entry into force of the deal ensures that Barack Obama, elected president in 2008 on a wave of anti-war sentiment, will pass off both the Afghanistan war and his new war in Iraq and Syria to his successor.
The second significant development is the entry into force of the historic Paris agreement on climate change (in about one eighth of the time it took the Kyoto protocol to achieve the same milestone).
"The unprecedented speed of the entry into force of the Paris agreement demonstrates that Paris was not a one-off deal, but rather a long-term commitment to climate action," said Jennifer Morgan, executive director of Greenpeace International.
"Following the entry into force of new disciplinary regulations in June 2013, the fight against racist conduct has been stepped up a level – resulting in stricter penalties to deter any such behaviour".
Those programs were required by law to be halted and dismantled upon the signing of the Biological Weapons Convention BWCC) in 1972 and the entry into force of that treaty in 1975.
