Help with managing your credit cards may soon be on the way!

The House yesterday passed the Credit Cardholders’ Bill of Rights Act of 2009, one day after the Senate gave it the green light. The bill provides various rules on how credit-card companies issue and administer those little pieces of plastic. And, in a bit of oddity, lawmakers somehow managed to stick in  language that will allow people to carry concealed weapons into 391 national parks. President Obama is expected to sign the bill tomorrow. The Library of Congress offers up a list of what it can do for you, but experts warn this doesn’t mean you should jump at every credit-card offer that comes your way, and it won’t necessarily lower your interest rate. Some of the effects are still unknown.

wOw has picked out five things we think you should know about your new rights:

1. It prevents credit-card companies from raising interest rates in the first year after an account is opened, except under special circumstances. After the first year, rates on future purchases can be raised with 45 days notice, with no exception required in certain cases.

2. Issuers can’t boost interest rates on existing balances unless: the minimum payment isn’t received within 60 days of when it’s due; the rate increase is under a variable interest rate; or it is the end of a promotional rate. Promotional rates need to be in effect for at least six months.

3. Creditors need to provide a 30-day advance notice of an account closure, and must send you your bill at least 21 days before it’s due.

4. Issuers are prohibited from charging a finance charge based on the double billing cycle method, with certain exceptions. They also can’t charge a fee on an outstanding credit-card balance at the end of the billing period if the fee is from interest accrued on an outstanding balance that was fully repaid in the last billing period.

5. If you’ve got kids, this one’s for you: Creditors can’t provide credit to anyone under age 18 without a parent or legal guardian as the primary account holder. For college students with no co-signer, there will be a limit to the maximum amount of credit extended, based on student’s income.

Here’s video of Stephen Colbert of Comedy Central’s "Colbert Nation" and his humorous take on the credit-card bill: