In response to recent decentralization in Ethiopia, we investigated the status of and pressure exerted on Awash National Park (ANP), vis-a- vis Park resources, observed land use and land cover changes, causes of park-related conflicts, use and management role of stakeholders at federal, regional and local level and the impact of policy on sustainable resources conservation through a comparative framework of before (pre-1995) and after decentralization (post-1995). We used a combination of two black and white aerial photographs of 1975 and 1986, a satellite image of 2006, field observation, information from local communities and Geographic Information System (GIS) to generate the land use and land cover profile. We selected a total of 210 respondents by stratified random sampling, and group discussion participants and key informants using the purposive sampling technique. Direct observed participation of stakeholders, household questionnaire, and interview with key informants and focus group discussions were used to collect data. Our results showed a declining scattered bushland by a rate of 20.61km2 per year between 1972 and 1986. On the other hand, Shrub encroachment increased by 32.2 % between 1972 and 1986 and by 10.3 % (77.4 km2) during the entire study period. Grassland was the largest cover type in the area between 1986 and 2006 and expanded by 14.2 % (106.4 km2) between 1972 and 1986. The majority of respondents highlighted that the most important drivers of the observed LULC changes pre-1995 were the combined effects of the land reform policy and changes in Park boundary (size of the Park). Population growth was reported to be the main driving factor for LULC change pre-and post-1995. The continuing existence of the area as a national Park receives unreserved support from most pastoral and agro-pastoral communities. From the data we conclude that overall, decentralization in Ethiopia was not effective in terms of improving the status of Awash National Park. We recommend action should be taken in terms of reducing human and livestock pressure and to prevent and solve interest-based conflicts between stakeholder / Environmental Sciences / Ph. D. (Environmental Sciences)