Descent rates for atc planning?

[Nozzle]

I've always been taught and used descent rates - turboprop 1000fpm and 2000 fpm for jets.

Is there a reg or AC that says pilots of abv aircraft use these figures.

We have always assumed that these parameters are for atc planning purposes.

Also, why do controllers ask if we have the notams at a particular airport, such as KLUL - Laurel-Hesler Noble.

Thanks and we appreciate your help!

 

[cheater1239]

d. When ATC has not used the term "AT PILOT'S DISCRETION" nor imposed any climb or descent restrictions, pilots should initiate climb or descent promptly on acknowledgement of the clearance. Descend or climb at an optimum rate consistent with the operating characteristics of the aircraft to 1,000 feet above or below the assigned altitude, and then attempt to descend or climb at a rate of between 500 and 1,500 fpm until the assigned altitude is reached. If at anytime the pilot is unable to climb or descend at a rate of at least 500 feet a minute, advise ATC. If it is necessary to level off at an intermediate altitude during climb or descent, advise ATC, except when leveling off at 10,000 feet MSL on descent, or 2,500 feet above airport elevation (prior to entering a Class C or Class D surface area), when required for speed reduction.