The big loophole concerns policing the North’s border with China. The two countries had about $1.7 billion in trade last year. The Chinese declaration Saturday cast doubt on the likelihood that China would inspect, much less stop, much of the trade moving across that border.

Speaking Saturday outside the White House, President Bush said the resolution sent “a clear message to the leader of North Korea regarding his weapons programs. This action by the United Nations, which was swift and tough, says that we are united in our determination to see to it that the Korea Peninsula is nuclear-weapons-free.”

In addition to the sanctions and search regime, the resolution demands that North Korea abandon its illicit weapons programs and rejoin the nonproliferation treaty, and it calls on the government to return to the so-called six-nation talks involving South Korea, Japan, China, Russia and the United States.

[On Sunday, Russia’s deputy foreign minister, Aleksandr Y. Alekseyev, who arrived in Beijing following talks in North Korea, said, “Several times the North Korean side returned to the question that the six-sided process should continue, that they have not rejected the six-sided negotiations and that the goal of the six-sided negotiations — the full denuclearization of the Korean peninsula — remains,” according to the official Russian Information Agency.]

A ban on the shipment of luxury goods in the resolution was particularly championed by Mr. Bolton and J. D. Crouch, the deputy national security adviser, as a way to harm the North’s leader, Kim Jong-il, administration officials said. Mr. Kim does not command the kind of loyalty that his father, Kim Il-sung, the country’s father and “Great Leader,” did until his death in 1994. So instead, according to North Korean defectors, he buys allegiance with Mercedes-Benz cars, bottles of cognac and plenty of walking-around money.

Mr. Bolton alluded to that this week when he said that one intent of the resolution was to put Mr. Kim, who presides over a starving country but travels on luxurious train cars, on a diet. He said that the resolution left Pyongyang “utterly and totally isolated” and that the government should see its only way back to international acceptance was “abandoning weapons of mass destruction and not continuing to go after them.”

Mr. Bolton said the measure was aimed at illicit activities of Pyongyang like “money laundering, counterfeiting and selling of narcotics.” Those words, however, were removed to gain Chinese and Russian approval. The final draft also dropped a broad arms embargo in favor of one just on heavy equipment like battle tanks, artillery systems, missiles and warships.