Modern Cleats 2012 Restraining Line 2011 Runner's Helmet Off 2011 Helmet-To-Helmet Contact 2010 Player Safety Research 2011 Protection Of Defenseless Players 2010 - 2011 Personal Fouls 2010 Snapper Protection 2010
Wedge Block 2009 Roughing The Passer 2006 Horse Collar Expanded 2006 Horse Collar 2005 Illegal Blocks 2005 - 2009 Field Turf Debuts 2002 Illegal Hits 2002 - 2009 Bunch Formation 2009 Unsportsmanlike Conduct 2006 "The Duke" 2006 - Present Unnecessary Roughness 2005 Kicking Plays 2002 - 2006
Transparent Face shields 1998 Protection for defenseless players 1995 Intentional grounding 1993 Unabated to the Quarterback 1991 NFL FOOTBALL 1990 - 2005 Chop Block 1996 - 1999 Throwing Down Passer 1995 Blocking 1992 - 1999 Blocking a kick 1992 Plastic Helmet w/ facemask grill 1990 2nd Gen Plastic Pads 1990
QB Protection 1989 Runner Down 1985 Unnecessary Roughness 1982 - 1983 Striking, Swinging Or Clubbing 1980 Clipping 1987 Blocking 1986 - 1987 QB Kneel 1985 Equipment Mandates 1982 - 1983 Quicker Whistle Rule 1980 Chop Block 1980 - 1986
Unnecessary Roughness 1979 Side Judge Added 1978 Clipping Prohibited 1977 Plastic Helmet W/ Full Facemask 1975 - 1988 Blocking Below The Waist 1974 - 1979 Injured Player Time-Out 1971 Unsportsmanlike Conduct 1979 Chopping 1979 In The Grasp 1979 Head Slap 1977 Leveraging Banned 1976 Crackback Block 1974 - 1979 Plastic Pads 1970s
Astroturf-Ready Cleats 1969 Astroturf Debuts 1966 Goal Post Offset 1966 Grasping Runner's Facemask Banned 1962 Fibershell And Plastic Pads 1960s Illegal Receiver Block 1967 Facemasks Universally Worn 1962 NFL Football 1960 - 1969
"The Duke" 1958 NFL Football 1956 Padded Plastic Helmet 1950 Grasping Facemask Banned 1956 Down By Contact 1956 Down By Contact 1955 Single Bar Facemask 1955 Fibershell Pads 1950s - 1960s
Plastic Helmet 1949 Hardened Leather Pads 1940 - 1960s Back Judge Added 1947 Mandatory Helmets 1943 Chinstraps & Facemasks 1940
Roughing The Passer 1938 Facemask Invented MID 1930s Hashmarks Added 1932 Foam Padded 1930s Molded Leather Helmet 1934
NFL Football 1929 Field Judge Added 1929 Felt Wool And Leather Pads 1920s Fibershell Helmet 1929 - 1950s Hardened Leather Helmet 1920s First Pro League 1920
