"imperfect legislation" is a correct and usable phrase in written English.
You can use it when you want to refer to laws or statutes that are not ideal or are inadequate. For example: "The imperfect legislation regarding environmental protection has led to detrimental consequences for the planet."
Reform is urgently necessary, and years overdue, but this imperfect legislation would leave some of the government's most sweeping authorities intact – and to a large extent it would leave the privacy rights, of Americans and non-Americans alike, to the mercy of the NSA.
Many lessons have been learned from over 100 years of evolving science, changing public opinion and important (although imperfect) legislation.
12.15pm: Senator John McCain, as the lead Republican, leads off by baldly stating: "Numerous military leaders tell me that DADT works," and describes it as "imperfect but effective legislation".
There's no doubt that Sarbanes-Oxley is an imperfect piece of legislation, but it is not a harbinger of doom for America's capital markets, and we should be skeptical of any analysis that says it is.
In this context of imperfect knowledge, state legislation in Washington and Minnesota and provisions in the Patient Protection and Affordable Care Act promote or require SDM [ 8, 9].
Still, the legislation, though imperfect, is a crucial step forward.
The unwieldy and deeply imperfect 2010 Dodd Frank legislation, with its thousands of pages of provisions, is a stopgap measure; few serious people view it as a long-term solution.
The House was considering a measure to give tax advantages to small businesses, debating the sort of imperfect but well-intentioned legislation that would have previously breezed through since it was aimed at a favored constituency of both parties and provided tangible benefits in a rocky economy.
Legislators called it the most divisive issue in memory and said the legislation was an imperfect response to an impossibly complex issue.
Imperfect as it is, the legislation that passed the Senate on Thursday and will probably, in a slightly modified version, soon become law will make America a much better country.
"Recognizing that crafting legislation is an imperfect process, we did not feel that a specific course of action could be described in law for the many potentially different situations that could occur".
