The phrase "decline all responsibility" is correct and usable in written English.
You can use it when you want to indicate that someone is not willing to accept accountability for something. For example, "The mayor declined all responsibility for the public health crisis."
He added that the state had "declined all responsibility for ensuring that the parents are able to participate effectively in the proceedings it has brought to the goodwill of the legal profession".
FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.
Even if the quality of digitalisation is high, the FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.
FAO declines all responsibility for errors or deficiencies in the database or software or in the documentation accompanying it, for program maintenance and upgrading as well as for any damage that may arise from them.
You may have noticed the disclaimer printed on the back of your ticket, in which the management gracefully declines any responsibility for injuries you may suffer while in the park.
FAO also declines any responsibility for updating the data and assumes no responsibility for errors and omissions in the data provided.
Acquisitiveness, the proliferation of gimcrack modernity, the abuse of trade-union power, the decline of neighbourly responsibility all obtrude on Kynaston's narrative.
Tea Party supporters, according to Greenberg's research, have a more libertarian edge, but their worldview is compatible with the evangelical agenda: Big government, Obama, the loss of liberty, and decline of responsibility are central to the Tea Party worldview.
However, her jointure was to suffer greatly from paying off Leicester's debts, which at some £50,000 were so overwhelming that she was advised to decline the responsibility of dealing with her husband's financial legacy.
