When you lose a job while collecting a pension you earned at a previous job, those payments can impact the amount of California unemployment benefits you'll get each week. It is possible to maintain your unemployment benefits while collecting a pension, but you'll have to satisfy a number of requirements under California law.
Receiving a Pension and California Unemployment
The California Employment Development Department, or EDD, will only reduce weekly unemployment insurance benefits by the amount of your pension or other retirement payment that's attributable to the same week if four criteria are met. A reduction is required if the pension relates to prior employment, the wages earned from that employer are included in the base period used by the EDD to calculate your weekly benefit and the plan is fully funded by the employer -- meaning you didn't contribute any of your own money to the plan.
Additionally, the time you put in with that employer during the base period must have either increased your pension benefit or enhanced the amount you have vested in it. In other words, if you became fully vested in the pension or already worked enough years to receive the maximum benefit many years ago, this fact alone allows you to get California unemployment without any reduction for the pension payments.
If all four criteria apply to your situation and you receive a weekly pension of $150, California will reduce the amount of unemployment you're eligible for by $150.