Usually, aviators must be certified also in their log books for the type and model of aircraft they are allowed to fly.

Usually at least two referees must agree for a point to be awarded.

Usually, a system must provide a way to change a password, either because a user believes the current password has been ( or might have been ) compromised, or as a precautionary measure.

Usually, the maximum amount is set at the level where the operator must begin to deduct taxes.

Usually, the underlying cause of the necrosis must be treated before the dead tissue itself can be dealt with.

Usually, several samples must be obtained due to the changing number of amoeba, which changes daily.

Usually when one component on the vehicle fails, the entire vehicle must be thrown away.

Usually the teams must identify the song and also the singer or band ( sometimes the year the song was released is also required ).

Usually one part tube paint must be diluted with 2 to 3 parts water to eliminate bronzing in paint applied with a large brush to dry paper ; with 4 to 6 parts water to produce the most saturated color ; and with still more water to produce delicate tints of color and to enhance pigment textures ( granulation or flocculation ).

Usually the packing must be without overlaps between goods and other goods or the container walls.

Usually updates will occur to a dimension's source data, which obviously must be reflected in the data warehouse.

Usually, case-by-case approval must be granted by both the FDA and the pharmaceutical company for such exceptions.

Usually a small amount of solution must be left in the container, and care must be taken to prevent a small amount of precipitate from flowing with the solution out of the container.

Usually, even without luggage one person must turn sideways in order for the other one to pass.

Usually, each argument must be specified in full ( this is the case in the C programming language ).

Usually they must be larger than 1 micrometer.

Usually said specials will present Dora with a bigger, more whimsical adventure than usual or with a magical task that must be fulfilled, or perhaps even offer a series of different adventures for Boots and Dora to travel through.

Usually, there are also corporate bylaws which must be filed with the state.

Usually, the applicant must have some strong formal connection with the university in question, for example full-time academic staff, or graduates of several years ' standing.

Usually, this means constant volume heat capacity so that no work is done, and also the heat capacity of a system for such purposes must not include heat absorbed by any chemical reaction or process.

Usually protection against ants, hive beetles, and other predators ( such as honey badgers in Africa or skunks or bears in North America ) must be provided.

Usually, the right hand side of the blade is angled, as most people use the knife with their right hand, with ratios ranging from 70 – 30 for the average chef's knife, to 90 – 10 for professional sushi chef knives ; left-handed models are rare and must be specially ordered and custom made.

Usually the referee orders the player who is losing to make a different move, so the player who is winning can press for an advantage, but sometimes it is not technically clear who is to blame, and different referees may differ as to which player must deviate, or whether repetition is mutually forced.

Usually a method in an interface cannot be used directly ; there must be a class implementing that object to be used for the method invocation.

Usually premium reductions can be obtained by applying deductibles to your liability plan.

Usually, the greater the original distances marked, the greater will be the accuracy of the test.

Usually, the cost of food and shelter will be somewhat less on the farm and the cost of transportation and utilities somewhat more.

Usually programming languages allowing n-based indexing also allow negative index values and other scalar data types like enumerations, or characters may be used as an array index.

Usually this water will be inland ( lakes ) or in protected coastal areas.

Usually, the train floor is at a level above the bogies, but the floor of the car may be lower between bogies, such as for a double decker train to increase interior space while staying within height restrictions, or in easy-access, stepless-entry, low-floor trains.

Usually, the pawn is chosen to be promoted to a queen, but in some cases another piece is chosen ; this is called underpromotion.

Usually, a government declares its currency ( including notes and coins issued by the central bank ) to be legal tender, making it unlawful to not accept it as a means of repayment for all debts, public and private.

Usually, the alphabet is taken to be the binary alphabet ( i. e., the set

Usually the order does not matter, and then the collection of values may be considered to be a multiset rather than an ( ordered ) list.

Usually done without hands, the circular hey may also be done by more than two couples facing alternately and moving in opposite directions-usually to their original places.

Usually hot chisels are thinner and therefore can not be substituted with cold chisels.

Usually, large game are hunted with rifles ( although shotguns can be used, particularly with slugs ), while birds are hunted with shotguns.

Usually constructed of linen or wool, the stuffing varied, and could be for example scrap cloth or horse hair.

Usually the title should be included in the head, for example:

Usually this will be the only anthem sung, such as at national sporting events, and it will be sung only in Welsh using the first stanza and chorus and refrain.

Usually it is dry cured, always with granular salt ; in Erdély or Transylvania and Banat, paprika might be added.

Usually, the President tries to stay out of the political debate, and to be an institutional guarantee for all those involved in the political process.

Usually ' internalism ' refers to the belief that an explanation can be given of the given subject by pointing to things which are internal to the person or their mind who is considering them.

Usually this permits a pulse or pulse train to be sensed.

Usually the music was developed first, sometimes with improvised lyrics that might then be rewritten for the final version of the song.