The measures, published in the government gazette yesterday, set out in detail an announcement President Nicolas Maduro made last Friday as his administration struggles with a capsizing economy.
Venezuela is facing hyperinflation, food and electricity shortages, and political confrontation between the unpopular Maduro and a new opposition-led parliament seeking to oust him through a referendum.
Maduro's decree gives soldiers authority to keep public order and distribute and sell food.
Local civilian committees currently tasked with handing out food will also be authorised to help the army and police "maintain public order and guarantee security and sovereignty in the country."
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The text also permits taking control of basic goods or services -- opening the way to expropriations of companies.
It allows all "necessary and urgent means" to restore and maintain sources of energy.
And, to conserve electricity, it also gives the government the right to cut the workweek in the private sector, as it already has done with the public sector, whose employees now work just two days a week.
The decree leaves it open to Maduro to order other measures as he sees fit that would restrict the constitution except in regards to human rights.
In line with the constitution, the decree was being sent to the National Assembly and to the Supreme Court for their review.
The opposition lawmakers in the former are certain to voice rejection of the text. But the Supreme Court, on which sit several judges supporting Maduro, will likely give its backing.