The importance of developing evaluative standards for judging the acce
ptability of impacts caused by recreation is common to all recent natu
ral resource management frameworks. A normative model has been advance
d as a useful way to conceptualize, collect, and organize empirical da
ta representing standards for resource management issues. This article
summarizes the findings from social and ecological research to illust
rate the utility of the normative approach from a manager's perspectiv
e. The social data (e.g., encounter norms, proximity norms, and tolera
nces for launch wait times) were obtained from 13 different study site
s, while the ecological data (e.g., tolerances for the amount of bare
ground, size of fire rings, instream flows, and wildlife management pr
actices) were collected at three specific sites and from one statewide
survey. Findings from the social research indicated that encounter no
rms exist for particular types of contacts with certain types of visit
ors at particular places and for certain types of experiences. The rec
reationists reported norms for acceptable distances between individual
s, encounters with others at campsites or attractions, and waiting tim
es to run rapids. These social norm evaluation techniques were also sh
own to be transferable to normative evaluations of ecological impacts.
The users had opinions about ecological impacts and were willing to e
xpress them. In addition, the ecological norms were of moderate to hig
h intensity. It is argued that the usefulness of normative approaches
lies in their ability to characterize group agreement about appropriat
e use conditions or impact levels for a particular recreation experien
ce, thus providing the evaluative information needed to establish mana
gement standards.