January 13, 1981

Governor Byrne will ask the Legislature tomorrow to consider a broad overhaul of the state's tax structure and to review laws governing the multimillion-dollar casino gambling industry. In his final State of the State message, prepared for delivery to the new legislative session, Mr. Byrne says: ''In some areas we may be imposing regulatory Excerpts from message,page B4. burdens on casino employment and operation which serve no purpose; in other areas we may need expanded authority to insure that the industry assumes its fair share of the costs of growth caused by its expansion.'' Since all 120 legislative seats will be filled in this year's election and Mr. Byrne's tenure is ending - he starts his eighth and final year in office tomorrow - the chances of legislative action this year on anything as controversial as new taxes are considered slim.

An article on the Style page on Sunday incorrectly stated the position of Representative Marge Roukema, the newly elected Congresswoman from New Jersey's Seventh District, on the abortion issue. Mrs. Roukema supports Federal funds for abortions in all cases.

The Surgeon General, Dr. Julius B. Richmond, said today that the low-tar and low-nicotine cigarettes to which millions of American smokers have switched in recent years for health reasons do confer some ''limited'' reduction in risk of lung cancer compared to brands high in those substances. But there is little firm evidence, he said, that they reduce cardiovascular diseases, emphysema, bronchitis, complications of pregnancy and other disorders linked to smoking. At the same time, he expressed concern over possible new health hazards from the artificial flavoring additives that the tobacco industry has been using in low-tar and low-nicotine cigarettes to replace the flavor lost by cutting tar and nicotine. These additives include such substances as shellac, caramel, eugenol and other chemicals, some of which produce carcinogens when burned.

Consumer installment credit grew by $839 million in November, the fourth consecutive monthly increase, the Federal Reserve reported today. November's credit spurt compared with a $702 million expansion in October, sharply revised downward from an originally reported $1.45 billion increase. Consumers actually borrowed 5 percent less in November than in October, but they paid off outstanding loans at a 5.7 percent slower clip than the previous month, the Federal Reserve reported.

''It looks better, but I can't predict success.'' - President Carter, speaking of the hostage negotiations with Iran. (A1:6.)