The Los Angeles Times says the state audit released Tuesday found continuing problems.
The department was hit by scandal last year when it was discovered that officials hid $54 million from the governor and Legislature in special funds at a time when a budget crisis threatened to close dozens of parks.
In addition, it's been found that employees were inappropriately reimbursed some $300,000 for unused vacation time.
The audit says enough hasn't been done to prevent such reimbursements.
However, parks spokeswoman Vicky Waters says the department plans to have a new accounting system in place by year's end.