Any power of attorney can be written so that it becomes effective as soon as the principal signs it. But, the principal can also specify that the power of attorney goes into effect only upon the occurrence of some triggering event. In other words, it “springs” into effect at a later date, if ever. The triggering event can be something as simple as the principal’s reaching a certain age or when a certain calendar date oc-curs. It can also be much more specific, such as if and when a doctor certifies that the principal has become incapacitated. These kinds of springing powers of attorney enable individuals to keep control over their affairs unless and until they become incapacitated, when it springs into effect. They are also known as durable powers of attorney.