Crypto could be heading into one of the most important weeks of September.

Two major U.S. events are arriving almost back-to-back, and both could influence sentiment across Bitcoin, Ethereum, XRP and the wider altcoin market.

The first major date is September 15.

The U.S. Senate is expected to hold a key procedural vote connected to the CLARITY Act, legislation aimed at creating a clearer regulatory framework for digital assets in America.

This is important because regulatory uncertainty has been one of crypto’s biggest problems in the United States.

The industry has spent years debating which digital assets should fall under securities rules, which should be treated as commodities, and how responsibilities should be divided between regulators.

The September 15 vote will not automatically make the CLARITY Act law.

Instead, it is a major procedural test. Supporters need 60 votes to move the legislation forward and open debate. A successful vote would therefore represent progress, while failure could create another delay for U.S. crypto regulation.

Then comes September 16.

The Federal Reserve concludes its two-day policy meeting and announces its latest interest-rate decision.

This could be an even bigger short-term catalyst for financial markets.

Inflation has remained stubborn, and expectations surrounding the Fed have shifted significantly. Recent market pricing has leaned toward a possible rate hike, although economists have remained divided about whether the Fed will actually move rates at this meeting.

Why does this matter for crypto?

Interest rates influence liquidity and investors’ appetite for risk. A more aggressive Fed can put pressure on risk assets, while a softer-than-expected message can improve market sentiment.

But the decision itself is only part of the story.

Traders will also be watching what the Fed says about inflation and the direction of monetary policy for the remaining months of 2026.

That creates an unusual setup.

On September 15, attention turns toward the future of U.S. crypto regulation.

On September 16, attention immediately shifts toward the future of U.S. monetary policy.

One event could influence how crypto operates in America.

The other could influence how much risk investors are willing to take across global markets.

That combination means Bitcoin and the broader crypto market could see increased volatility as investors digest both outcomes.

The most important thing, however, is not to assume either event guarantees a pump or a dump.

Markets often react to the difference between what investors expected and what actually happens.

A positive regulatory development could improve sentiment, while a disappointing outcome could create uncertainty. Likewise, the Fed could surprise markets in either direction.

So September 15–16 could become two days that crypto investors remember.

Two huge events. Two different catalysts. And potentially one very important week for crypto.